Answer:
Step-by-step explanation:
Alyssa is baking a cake the recipe calls for 8 cups of flour she already put in 2 cups how many more cups does she need to add
Susan bought a 1 kilogram bag of grapes. On the way home, she ate 125 grams of the grapes. How many grams of grapes does Susan have left? use math language and symbols to explain how you used the correct measurement units to solve the problem.
Susan has 875 grams of grapes left.
1. Susan bought a 1 kilogram bag of grapes, which is equivalent to 1000 grams (since there are 1000 grams in a kilogram).
2. Susan ate 125 grams of the grapes on her way home.
3. To find out how many grams of grapes Susan has left, we need to subtract the amount she ate from the initial weight of the bag. Therefore, we subtract 125 grams from 1000 grams.
1000 grams - 125 grams = 875 grams
4. Thus, Susan has 875 grams of grapes left.
measurement units:
In this problem, we used grams as the measurement unit. Grams are commonly used to measure the weight of small objects like grapes. Since the problem stated that Susan bought a 1 kilogram bag of grapes, it was necessary to convert the kilogram measurement to grams.
This conversion was done by multiplying the kilogram value by 1000 (1 kilogram = 1000 grams). By using the correct measurement units, we were able to accurately calculate the amount of grapes Susan had left after eating a portion.
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b) 15, 13, 11, 9, 7.
find the term to term rule
Answer:
subtract 2 (- 2)
Step-by-step explanation:
the term to term rule is the change between each term in this series.
from 15 to 13, we subtract 2 (-2)
from 13 to 11, we subtract 2 (-2)
from 11 to 9, we subtract 2 (-2)
from 9 to 7, we subtract 2 (-2)
So, this is the term to term rule: subtract 2
Next term as per term rule of arithmetic progression is 5.
What is arithmetic progression?" Arithmetic progression is defined as the difference between two consecutive term is constant. Difference is known as common difference."
General form of Arithmetic progression
a, a + d, a + 2d , ........, a + nd
Common difference 'd' = \(a_{n} -a_{n-1}\)
According to the question,
Given terms are,
15, 13, 11, 9, 7
\(a_{1} =15\\\\a_{2} = 13\\\\a_{3} = 11\\\\a_{4} = 9\\\\a_{5} = 7\)
Common difference = \(a_{2} -a_{1}\)
= 13 - 15
= -2
Common difference = \(a_{3} -a_{2}\)
= 11 - 13
= -2
Given sequence is arithmetic progression with common difference -2
Next term after 7 as per term rule of arithmetic progression is
\(a_{6} = 7-2\)
= 5
Hence, Next term as per term rule of arithmetic progression is 5.
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Explain how you used a mathematical model
to represent the situation. How did the model help you answer the
Main Question?
In mathematical modelling, we take a real-world problem and write it as an equivalent mathematical problem.
We then solve the mathematical problem, and interpret its solution in terms of the real-world problem.
After this we see to what extent the solution is valid in the context of the real-world problem.
Mathematical modeling is one of the bases of mathematics education. Mathematical modeling is described as conversion activity of a real problem in a mathematical form. Modeling involves to formulate the real-life situations or to convert the problems in mathematical explanations to a real or believable situation.
It's extremely precise, since it's math-based, which allows you to develop accurate ideas and assumptions. It's concise, with clear and established rules. It gives you direction when trying to solve a problem.
characters of modeling;
In mathematical models parameters are most often represented by variables. Changes in the numbers assigned to the variables change the model. 3) Simplification/Idealization.It should necessarily be incomplete.It may be changed or manipulated with relative ease.
It is simplification/Idealization. Mathematical modeling has many benefits related to real-world problems, but the main disadvantages are process simplification, specific rules of the model, and lack of information or data monitoring.
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Ms. Walker's science class is doing an egg drop experiment from the balcony of their school. Each egg is protected by a contraption that the students collectively designed. The height of the egg, in feet, after x seconds is given by the expression below. What do the zeros of the expression represent? A. the maximum height of the egg B. the time at which the egg reaches its maximum height C. the horizontal distance traveled by the egg D. the time at which the egg reaches the ground
Answer:
An object balances itself when a perpendicular line drawn through its Centre of Gravity (CG), passes through its base.
See the picture of a popular toy given below. The horse, the rider and the ball are all joined together as one single unit. This entire unit is balanced on the thin black rod shown. At which of the indicated positions, could the Centre of Gravity (CG) of the horse, rider and ball unit be?
July 10 book Science up55 down8
AA BB
CC DD
Step-by-step explanation:
Find the missing angle and side measures of Delta*ABC , given that
m angle A = 50 deg , m angle C = 90 deg , and CB = 16
The missing angle is <B= 40 degree and missing side length is AB = 12.25 and AC = 19.068.
To find the missing angle and side measures of ΔABC, we can use the properties of a triangle.
Given:
∠A = 50°
∠C = 90°
CB = 16
We can start by finding the measure of ∠B:
∠A + ∠B + ∠C = 180° (Sum of angles in a triangle)
50° + ∠B + 90° = 180°
∠B + 140° = 180°
∠B = 180° - 140°
∠B = 40°
Now, using Sine law
CB/ sin A = AB / sin C
16 / sin 50 = AB / sin 90
16 / 0.766044 = AB
AB = 12.25
Again 12.25 = AC/ sin B
12.25 = AC / sin 40
AC = 19.068
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p(x)=x^3+7x^2+4x-12 find the root of p(x)
factor p(x)
Step-by-step explanation:
Step 1 :Equation at the end of step 1
(((x3) + 7x2) + 4x) - 12
Step 2 :Checking for a perfect cube
2.1 x3+7x2+4x-12 is not a perfect cube
Trying to factor by pulling out :
2.2 Factoring: x3+7x2+4x-12
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: x3+7x2
Group 2: 4x-12
Pull out from each group separately :
Group 1: (x+7) • (x2)
Group 2: (x-3) • (4)
Bad news !! Factoring by pulling out fails :
The groups have no common factor and can not be added up to form a multiplication.
Polynomial Roots Calculator :
2.3 Find roots (zeroes) of : F(x) = x3+7x2+4x-12
Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F(x)=0
Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers x which can be expressed as the quotient of two integers
The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient
In this case, the Leading Coefficient is 1 and the Trailing Constant is -12.
The factor(s) are:
of the Leading Coefficient : 1
of the Trailing Constant : 1 ,2 ,3 ,4 ,6 ,12
Let us test ....
P Q P/Q F(P/Q) Divisor
-1 1 -1.00 -10.00
-2 1 -2.00 0.00 x+2
-3 1 -3.00 12.00
-4 1 -4.00 20.00
-6 1 -6.00 0.00 x+6
-12 1 -12.00 -780.00
1 1 1.00 0.00 x-1
2 1 2.00 32.00
3 1 3.00 90.00
4 1 4.00 180.00
6 1 6.00 480.00
12 1 12.00 2772.00
The Factor Theorem states that if P/Q is root of a polynomial then this polynomial can be divided by q*x-p Note that q and p originate from P/Q reduced to its lowest terms
In our case this means that
x3+7x2+4x-12
can be divided by 3 different polynomials,including by x-1
Polynomial Long Division :
2.4 Polynomial Long Division
Dividing : x3+7x2+4x-12
("Dividend")
By : x-1 ("Divisor")
dividend x3 + 7x2 + 4x - 12
- divisor * x2 x3 - x2
remainder 8x2 + 4x - 12
- divisor * 8x1 8x2 - 8x
remainder 12x - 12
- divisor * 12x0 12x - 12
remainder 0
Quotient : x2+8x+12 Remainder: 0
Trying to factor by splitting the middle term
2.5 Factoring x2+8x+12
The first term is, x2 its coefficient is 1 .
The middle term is, +8x its coefficient is 8 .
The last term, "the constant", is +12
Step-1 : Multiply the coefficient of the first term by the constant 1 • 12 = 12
Step-2 : Find two factors of 12 whose sum equals the coefficient of the middle term, which is 8 .
-12 + -1 = -13
-6 + -2 = -8
-4 + -3 = -7
-3 + -4 = -7
-2 + -6 = -8
-1 + -12 = -13
1 + 12 = 13
2 + 6 = 8 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, 2 and 6
x2 + 2x + 6x + 12
Step-4 : Add up the first 2 terms, pulling out like factors :
x • (x+2)
Add up the last 2 terms, pulling out common factors :
6 • (x+2)
Step-5 : Add up the four terms of step 4 :
(x+6) • (x+2)
Which is the desired factorization
Final result :
(x + 6) • (x + 2) • (x - 1)
2/5 help me pls hiougfyxydtr6gdxfg
Answer:
0.4
Step-by-step explanation:
Divide 2 by 5 you'll get 0.4
Can someone tel me if the answers are correct ? Please
Answer:
huuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuh
a) Write 5^17 x 5^2 as single power of 5
Answer:
When we multiply two number with the same base but different power, the power gets added.
So, the answer is:
5^17*5^2
=5^(17+2)
=5^19
Help me with this geometry question!!
Answer:
A) trapezoid a=141 b=69
Step-by-step explanation:
It must be a trapezoid because two of the sids are not parallel. The interior angles of any quadrilateral must equal 360, and each side of a trapezoid must equal 180, so:
A) trapezoid a=141 b=69
Answer:
a
Step-by-step explanation:
-5(X+2)=35 APPLY THE DISTRIBUTIVE PROPERTY
Hello!
-5(x+2)=35
-5x-10=35
-5x=35+10
-5x=45
x=-9
Hope it helps!
~Just a determined gal
#CarryOnGainingKnowledge
\(MysteriousNature\)
Answer:
x = -9
Step-by-step explanation:
-5(x + 2) = 35
~Distribute
(-5 * x) + (-5 * 2) = 35
~Simplify
-5x - 10 = 35
~Add 10 to both sides
-5x = 45
~Divide -5 to both sides
x = -9
Best of Luck!
A coordinate grid showing Passing the Ball, with Time after Throw in seconds along the horizontal axis x, and Distance from Goal in yards along the vertical axis y. One line labeled Player, passes through the points (0, 35), (4, 25), and (10, 10). Another line labeled Ball, passes through (0, 45), (4, 25), and (9, 0).
The graph shows the locations of a ball and a player seconds after the ball is thrown. What point could represent the player catching the ball?
(0, 35)
(0, 45)
(4, 25)
(10, 10)
The point which could represent the player catching the ball is: C. (4, 25).
What is a graph?A graph can be defined as a type of chart that's commonly used to graphically represent data on both the horizontal and vertical lines of a cartesian coordinate, which are the x-axis and y-axis.
What is a point of intersection?In Mathematics, a point of intersection can be defined as the location on a graph where two (2) lines intersect, meet, or cross each other, which is typically represented as an ordered pair containing the point, x-axis and y-axis.
By critically observing the graph (see attachment) which models the given data, we can reasonably infer and logically deduce that the point (4, 45) where the "Distance from Goal" on the y-axis intersect with the "Time after Throw" on the x-axis represents the player catching the ball.
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Answer: 4, 25
Step-by-step explanation:
Hi can any one teach me this constant difference
The constant differences between the consecutive terms are 2 (a); 2 (b), -3 (c), 7 (d), 1(e), and 6(f).
How do you find the constant difference in a sequence of numbers?In math, the constant difference can be defined as the number that defines the pattern of a sequence of numbers. This means that number that should be added or subtracted to continue with the sequence.
Due to this, to determine the constant difference it is important to observe the pattern and find out the number that should be added. For example, if the sequence is 2, 4, 6, 8, there is a difference of 2 between each of the numbers and this is the constant difference.
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Express your answer in numerals. Raj had 400 cookies. He sold 2 5 of them yesterday and 1 10 of them today. How many cookies did Raj have left?
Answer:
35
Step-by-step explanation:
what is 9 + 10 ( I swear to god)
Answer:
19
Step-by-step explanation:
Don't swear to god jeez
Answer:
19
Step-by-step explanation:
Unless you're referring to the vine, then 9+10= 19.
If you are referring to the vine of 9+10, then its 21
Dave sold 32 tickets to the school fair, and Doug sold 24 tickets. What is the ratio, in simplest form, of the number of tickets Doug sold to the number of tickets Dave sold?
Answer:
34 tickets
Step-by-step explanation:
323424
The ratio, in simplest form, of the number of tickets Doug sold to the number of tickets Dave sold is 3/4.
What is Ratio?Ratio is defined as the relationship between two quantities where it tells how much one quantity is contained in the other.
The ratio of a and b is denoted as a : b.
Given that,
Dave and Doug sold some tickets to the school fair.
Number of tickets that Dave sold = 32 tickets
Number of tickets that Doug sold = 24 tickets
Ratio of the number of tickets Doug sold to the number of tickets Dave sold is,
Ratio = 24 / 32
In order to make it simplest, factor out the common factors and cancel it.
Ratio = (8 × 3) / (8 × 4)
= 3/4
Hence the required ratio is 3/4.
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The Spanish club sold pizza and slushies for a fundraiser
•The pizza slices were sold for $1 each
•The slushies were sold for $1.50 each
•The students sold 368 items total
•From the total items 3/4 were pizza and the rest were slushies
How much money did the Spanish club raise from the slushies sale?
The Spanish club raised $138 from the slushies sale. First, we found the total number of slushies sold by subtracting 3/4 of the total items from the total items. Then, we multiplied the number of slushies by the price per slushie.
Explanation:To solve this problem, we first need to figure out how many slushies were sold. As the question mentions, 3/4 of the 368 items sold were pizzas, and the rest were slushies. Therefore, the total number of slushies sold is the difference, i.e., 368 - (368 * 3/4).
Calculation: 368 - (368 * 3/4) = 92 slushies sold.
Next, since each slushie was sold for $1.50, the total amount raised from the sale of slushies is 92 (slushies sold) * $1.50 (price per slushie).
Calculation: 92 * $1.50 = $138 raised from the slushies sale.
The Spanish club therefore raised $138 from the slushies sale.
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Jessica needs to know how much water her new fish tank can hold:
A rectangular prism with a length of 8 inches, a width of 4 inches, and a height of 9 inches.
Determine the total volume of the fish tank.
The fish tank has a total volume of 288 inch³. As a result, Jessica's new fish tank has a capacity of 288 inch³ for water.
The volume of a rectangular prism can be calculated using the formula:
V = l x b x h..........(i)
where,
V ⇒ Volume
l ⇒ length
b ⇒ width
h ⇒ height
From the question, we are given the values,
l = 8 inches
b = 4 inches
h = 9 inches
Putting these values in equation (i), we get,
V = 8 x 4 x 9
⇒ V = 288 in³
Therefore, the fish tank has a total volume of 288 inch³. As a result, Jessica's new fish tank has a capacity of 288 inch³ for water.
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Help please! Show all your work.
Answer:
If y and x have a proportional relationship, then we can write an equation of the form y = kx, where k is a constant of proportionality.
To find the value of k, we can use the given values of y and x:
y = kx
24 = k(12)
k = 2
Now that we know k, we can use the equation to find the value of y when x=16:
y = kx
y = 2(16)
y = 32
Therefore, when x=16, y=32.
A computer system valued at $1500 three years ago is now worth $600. Find the percentage decrease in the value or the computer system?
Please help explain the problem as well I need an example for my math class thank you!
Answer:2.5
Step-by-step explanation:
tell me if im wrong
The slope of the tangent line to the curve y= 3/x
at the point 5, 3/5 is-
The equation of this tangent line can be written in the form y = mx + b
where:
m is:
b is:
The tangent line at that point is:
y = (-3/25)*x + 6/5
so m = -3/25, and b = 6/5
How to find the slope of the tangent line?To find the slope at that point, we need to evaluate the derivative at that point.
y = 3/x
The derivative is:
y' = -3/x²
When x = 5, we have:
y' = -3/5² = -3/25
So that is the slope, m.
Now let's find the line.
The line must pass trhough the point (5, 3/5), then:
3/5 = (-3/25)*5 + b
3/5 = -3/5 + b
3/5 + 3/5 = b
6/5 = b
The equation of the line is:
y = (-3/25)*x + 6/5
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Fill in the blank with the correct answer choice. A ___________ has exactly one pair of parallel lines. a. square c. trapezoid b. parallelogram d. rectangle Please select the best answer from the choices provided A B C D
Answer: C
Step-by-step explanation:
The rest of the quadrilaterals provided have 2 pairs of parallel lines.
The choice is:
CExplanation:
The quadrilateral that has exactly one pair of parallel lines is called a trapezoid.
Here's what a trapezoid looks like :
\(\setlength{\unitlength}{1 cm}\begin{picture}(0,0)\linethickness{0.3mm}\qbezier(0,0)(0,0)(1,3)\qbezier(5,0)(5,0)(4,3)\qbezier(1,3)(1,3)(4,3)\qbezier(3,0)(8.2,0)(0,0)\put(-0.5,-0.3){$\sf A$}\put(5.3,-0.3){$\sf B$}\put(4.2,3.1){$\sf C$}\put(0.6,3.1){$\sf D$}\end{picture}\)
Hence, this makes C the correct choice.Aris and Josiah are reading a 50-page book for their ELA class. Aris wants to know what page Josiah is reading. Josiah gives her two hints: 1. The product of the two page numbers he can see is 930. 2. The page he is reading is an odd numbered page.
Answer:
31
Step-by-step explanation:
Let x and (x + 1) be the page numbers Josiah can see
Hint 1: x(x + 1) = 930
⇒ x² + x = 930
⇒ x² + x - 930 = 0
Using quadratic formula,
\(x = \frac{-b\pm\sqrt{b^2 -4ac} }{2a}\)
a = 1, b = 1 and c = -930
\(x = \frac{-1\pm\sqrt{1^2 -4(1)(-930)} }{2(1)}\\\\= \frac{-1\pm\sqrt{1 +3720} }{2}\\\\= \frac{-1\pm\sqrt{3721} }{2}\\\\= \frac{-1\pm61 }{2}\\\)
\(x = \frac{-1-61 }{2}\;\;\;\;or\;\;\;\;x= \frac{-1+61 }{2}\\\\\implies x = \frac{-62 }{2}\;\;\;\;or\;\;\;\;x= \frac{60 }{2}\\\\\implies x = -31\;\;\;\;or\;\;\;\;x= 30\)
Sice x is a page number, it cannot be negative
⇒ x = 30 and
x + 1 = 31
The two pages Josiah can see are pg.30 and pg.31
Hint 2: The page he is reading is an odd number
Out of the pages 30 and 31, 31 is an odd number
Thereofre, Josiah is reading page 31
The sum of two numbers is 24.The difference of their square is 144.what are the two numbers?
Answer:
the answer to this question is 12 and 12
Which word describes the slope of the line?
O positive
O negative
zero
O undefined
The slope of a horizontal line is always zero.
What is slope?
The slope of a line is a measure of how steep the line is. It represents the rate at which the y-coordinate of the line changes with respect to the x-coordinate. Symbolically, it is represented by the letter m, and can be calculated using the following formula:
m = (y₂ - y₁) / (x₂ - x₁)
where (x₁, y₁) and (x₂, y₂) are any two points on the line.
The slope of a horizontal line is always zero. This is because a horizontal line has the same y-coordinate at every point, and therefore, there is no change in the y-coordinate for any change in the x-coordinate.
By definition, the slope of a line is the change in y divided by the change in x. In the case of a horizontal line, the change in y is always zero, since the y-coordinate does not change. So, no matter what value of x you choose, the slope of a horizontal line will always be:
slope = change in y / change in x = 0 / (any non-zero value of x) = 0
So, the slope of a horizontal line is always zero.
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Please look at the photo. Thank you!
The equations of the composite functions are (h o h)(x) = (x² + 3)² + 3 and (f o f)(x) = x
How to calculate the composite functionsFrom the question, we have the following equations that can be used in our computation:
h(x) = x² + 3
f(x) = 3/4x
From the above, we have
(h o h)(x) = h(h(x))
So, we have
(h o h)(x) = (x² + 3)² + 3
Also, we have
(f o f)(x) = 3/[4(3/4x)]
Evaluate
(f o f)(x) = x
Hence, the composite functions are (h o h)(x) = (x² + 3)² + 3 and (f o f)(x) = x
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A school has 100 students and 5 teachers. In the first period, each student is taking one class, and each teacher is teaching one class. The enrollments in the classes are 50, 20, 20, 5, and 5. Let t be the average value obtained if a teacher is picked at random and the number of students in their class is noted. Let s be the average value obtained if a student is picked at random and the number of students in their class, including that student, is noted. What is t-s?
A)-18.5 B)-13.5 C)0 D)13.5 E)18.5
Answer:
E.
Step-by-step explanation:
If R is (-4, 7) and S is (-2, 12), what is the component form of the vector R.S?
(8,84)
(2,5)
(-6, 19)
(-3,9.5)
Answer:
(2, 5)
Step-by-step explanation:
Given:
R = (-4, 7)S = (-2, 12)To find the components of \(\overrightarrow{RS}\) we need to go from R to O and then O to S. Remember that \(\overrightarrow{RO}\) is the negative of \(\overrightarrow{OR}\). Therefore:
\(\begin{aligned} \displaystyle \overrightarrow{RS} & =\overrightarrow{RO}+\overrightarrow{OS}\\& = \overrightarrow{OS}-\overrightarrow{OR}\\& =\binom{-2}{12}-\binom{-4}{7}\\& =\binom{2}{5}\end{aligned}\)
Therefore, the component form (x, y) of the vector \(\overrightarrow{RS}\) is (2, 5)
Find the measure of the indicated angle.
99⁰
96⁰
98⁰
92°
L
120°
K
N
M
64
Answer:
? = 92°
Step-by-step explanation:
the chord- chord angle ? is half the sum of the measures of the arcs intercepted by the angle and its vertical angle, that is
? = \(\frac{1}{2}\) (LM + AK) = \(\frac{1}{2}\) (120 + 64)° = \(\frac{1}{2}\) × 184° = 92°