Answer:
66
Step-by-step explanation:
Pretty easy ngl
5x > 2x + 12 please solve quick!!!!!!!!!!
Answer:
x > 4
Step-by-step explanation:
Find the set of values that x may take on that makes this inequality true.
Start by subtracting 2x from both sides, which will simplify the inequality and isolate x on the left side: 3x > 12.
Further isolate x by dividing both sides by 3:
x > 4
Answer:
x=1
Step-by-step explanation:
Look at 3*x-x+2=4
Eliminated similar terms 3*x,-x
It becomes (3-1*x+2=4
Look at (3-1)*x+2=4.
Added fractions or integers together
It becomes (2)*x+2=4
Look at (2)*x+2=4
Remove unneeded parentheses around factor 2
It becomes 2*x+2=4
Look at 2*x+2=4
Moved these terms to the left -4
It becomes 2*x+2-4=0.
Look at 2*x+-2=0
Added fractions or integers together
It becomes 2*x+-2=0.
Look at 2*x+-2=0
Removed extra sign in front of -2
It becomes 2*x-2=0
Look at 2*x-2=0.
Solved linear equation 2*x-2=0 equivalent to 2*x-2 =0
It becomes 0=0.
Result: 0=0
This is an equation! Solutions: x=1.
Dylan and Tiffany each constructed a two-color spinner. Dylan spun his spinner 3 times and calculated that the relative frequency of his spinner landing on blue (0.67) and on red (0.33). Tiffany spun her spinner 200 times and calculated the relative probability of her spinner landing on blue (0.60) and on red (0.40). How can Dylan's and Tiffany's calculations be used to evaluate the fairness of the two spinners?
Answer: You can calculate the likeliness of the spinner landing on blue or red as the more spins you have the more accurate the results would be. In this case, after 200 spins Tiffany calculated that the spinner landing on blue has a 60% chance while landing on red has a 40% chance. Therefore this might not be fair as there is a 60% chance of landing on blue.
Step-by-step explanation: sorry if this didn't help :(
4/5 ÷−3/10 what is the answer for this question
Answer:
2 2/3
Step-by-step explanation:
Ava is buying 30 baseball caps and pays a total of $240. Each cap costs the same amount. Determine whether the situation below represents a direct proportion, and justify your reasoning. If so, find the constant of proportionality.
Pls find the answer winter break is almost ending
90% of people marry there 7th grade love. since u have read this, u will be told good news 2night. if u don't pass this on nine comments ur worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of ur life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you...
The answer is 8 so its a direct proportion
I think...
The constant of Proportionality is 8.
What is constant of Proportionality?If the ratio of one variable to the other is constant, then there is a proportional relationship between the two variables. If x and y are in a proportional relationship, then the ratio of y to x is the constant of proportionality. We can also express it as x is to y at times.
Given:
Total Baseball Caps= 30
Total amount of Cap= $240
let the number of caps sold be c.
Then, the equation is
30 c= 240
and, c= 240/30
c= 8
Hence, the constant of Proportionality is 8.
Learn more about constant of Proportionality here:
https://brainly.com/question/29126727
#SPJ2
help please here is the Question Each week as part of her workout, Monica walks 0.5 mile, runs 1.6 miles, and then walks 0.75 mile.
How many total miles will Monica walk and run in a year? Reminder: there are 52 weeks in a year.
PLS HELP ME>|!
IF ITS RIGHT WILL MARK BRAINLIEST
Answer: 10x = 4 is x = 0.4.
To solve the equation 10x = 4, we want to isolate the variable x on one side of the equation.
First, we divide both sides of the equation by 10:
10x / 10 = 4 / 10
Simplifying:
x = 0.4
Therefore, the solution to the equation 10x = 4 is x = 0.4.
so i need to drag the tiles and get the answer :)
Answer:
\( - 2 \frac{3}{5} \div \frac{3}{5} = - \frac{13}{5} \times \frac{5}{3} = - \frac{13}{3} = - 4 \frac{1}{3} \)
\(2 \frac{1}{4} \div \frac{3}{4} = \frac{9}{4} \times \frac{4}{3} = 3\)
\( - \frac{10}{17} \div ( - \frac{15}{17} ) =\)
\( - \frac{10}{17} \times ( - \frac{17}{15} ) = \frac{2}{3} \)
\( 2.75 \div ( - 2.2) = \)
\( 2 \frac{3}{4} \div ( - 2 \frac{1}{5} ) = \)
\( \frac{11}{4} \div ( - \frac{11}{5} ) = \frac{11}{4} \times ( - \frac{5}{11} ) = - \frac{5}{4} = - 1.25\)
3 ⇒ 2 (1/4) / (3/4)
-1.25 ⇒ 2.75 / (-2.2)
2/3 ⇒ (-10/17) / (-15/17)
-4 1/3 ⇒ -2 (3/5) / (3/5)
Hope my answer helps you✌️
Mark BRAINLIEST
What is the sum of -2x³ + x-3 and x³ - 3x - 4?
(a) Show your work.
(b) Is the sum of -2x³ + x-3 and x³ - 3x - 4 equal to the sum of x³ - 3x - 4 and
-2x³ + x-3? Explain your answer.
Answer:
Step-by-step explanation
For the first sum you nee to find the same coefficient or add or subtract a number
\(-x^3 -2x -7\)
This the simplified version of the sum above. I have basically subtracted -2x^3 by x^3 to make -x^3. Then I have subtracted -3x and x to make -2x. Finally I have added -4 and -3 as the rule suggests to add two numerals the minus symbol on both of them.
The next sum we have to simplify both numerals so we know if both sum’s answer are
\(-x^3 -2x -7-x^3 -2x -7\)
After simplifying them, both of them have the same answer, so the statement is true. To explain this, we could say that the sums were basically rotated around to trick us but the answer is still the same
stumped (again), someone help!!
Answer: 74.75 miles
Step-by-step explanation:
It’s work from school, 7.3+22.6 is 29.9 29.9x2 1/2 is 74.75
helppppppppppppppppppppppppppppppppppppppp
Answer:
28 grams
Step-by-step explanation:
.
expand the expression: 1/3(12d + e)
Answer:
4d + e/3
1/3 x 12d + 1/3e
1x12d/3+1/3e
12d/3 + 1/3e
4d + 13e
4d + e/3
Find the value of x .
Answer:
x=32
Step-by-step explanation:
Add the 2 angles and subtract that by 180.
I would check my work just to make sure :)
the equation x^3 - 6x = 72 has a solution between 4 and 5.
Use a trial and improvement method to find the solution correct to one decimal place,
Answer:
4.6
Step-by-step explanation:
There are a number of "improvement" techniques that can be used to improve an estimate of a solution to a polynomial. Some of them use the polynomial itself to form the iterator function.
IteratorThere are a number of ways we can solve the given equation for x. Often, at least one of these will converge when used for improving the estimated value of x.
x₁ = (x^3 -72)/6 . . . . . . . add 6x-72, divide by 6
x₂ = 72/(x^2 -6) . . . . . . . factor out x and divide by its coefficient
x₃ = ∛(72 +6x) . . . . . . . add 6x and take the cube root
The first two of these iterators tend to diverge. For x = 4.5, they give ...
x₁ = (4.5³ -72)/6 = 3.1875
x₂ = 72/(4.5² -6) = 5.0526
Both of these stray out of the given interval of [4, 5].
However, the third one tends to converge, so can give us a useful approximation in one iteration:
x₃ = ∛(72 +6×4.5) ≈ ∛99 ≈ 4.6261
Second iterationApplying this again, we get ...
x ≈ ∛(72 +6·4.6261) ≈ 4.6378
The approximate root to 1 decimal place is 4.6.
__
Additional comment
One of the quickest converging iterators is that provided by Newton's method. For finding the solution to f(x) = 0, it uses ...
x₁ = x -f(x)/f'(x) . . . . . . . where f'(x) is the first derivative
For this problem, we can define ...
f(x) = x^3 -6x -72 ⇒ f'(x) = 3x^2 -6
x₁ = x -(x^3 -6x -72)/(3x^2 -6) = (3x^3 -6x -x^3 +6x +72)/(3x^2 -6)
x₁ = (2x^3 +72)/(3x^2 -6)
Then for x = 4.5, the "improved" solution is ...
x₁ = (2(4.5³) +72)/(3(4.5²) -6)) = 254.25/54.75 = 339/73 ≈ 4.6438
A second iteration gives ...
x ≈ 4.639026 . . . . accurate to 5 decimal places
With this iterator, the number of accurate decimal places tends to double with each iteration.
Five students bought the same style of shoes at five different stores. The prices they paid are listed below. $24.50, $19.25, $28.25, $22.50, $15.50 , Whats the mean absolute deviation?
A - 2.6
B - 4.4
C - 0
D - 3.7
Answer:
[See Below]
Step-by-step explanation:
_____________________________________________
✦ Mean Absolute Deviation (MAD): The average length between all the data and the mean.
_____________________________________________
✦ First solve for the mean of the data:
✧ Add together all the values:
\(24.50+19.25+28.35+22.50+15.50=110.1\)✧ Now divide by how many numbers or data you have:
\(110.1\) ÷ \(5=22.02\)_____________________________________________
✦ Now we solve for MAD:
\(3.716\)_____________________________________________
~Hope this helps Mate. If you need anything feel free to message me.
Evaluate 4.7 j−6.8k when j=5 and k=3
Answer:
3.1
Step-by-step explanation:
ok so
4.7j-6.8k J=5 k=3 plug in the values
4.7(5)-6.8(3)
23.5-20.4
3.1
Answer:
3.1
Step-by-step explanation:
replace the variables (4.7)5-(6.8)3
then solve using pemdas
4.7 times 5 =23.5
6.8 times 3= 20.4
23.5 - 20.4= 3.1
After watching baking shows on T.V., Brendan signs up for a cake-decorating class. To practice his new skills, he decorates a batch of cupcakes with sugar flowers. Brendan puts 5 sugar flowers on each cupcake. In all, Brendan puts 30 sugar flowers on the cupcakes.
Answer:
30/x=5
Step-by-step explanation:
30 divided by x (x=unidentified number)=5
5 times x=30
6=x
Help! I need to idenfity the clusters, strays, and gaps!!
Can you solve this for me? Thank you! :>
Answer: Z=14
Step-by-step explanation:
Simplify the equation: 1/4z=7/2
then multiple both sides by 4:
4 (1/4) = 4 (7/2)
z= 14
Answer: z=14
Step-by-step explanation: very easy
1/4z = 3 1/2 Divide each side by 1/4 to isolate z
3 1/2 will be divided by 1/4
How to divide 3 1/2 by 1/4?
Keep, change, flip.
First: Convert 3 1/2 to an improper fraction which is 7/2
Second: 7/2 / 1/4 keep 7/2
7/2 x 1/4 change from dividing to multiplying
7/2 x 4/1 flip 1/4 around to make it 4/1
28/2 multiply and then simplify to 14.
so the answer is 14
Larry borrows $1300 at 5% simple interest per month. When Larry pays the loan back 3 years later, what is the total amount that Larry ends up repaying?
plsss help!!
150 students in Years 10 and 11 visit a school canteen.
Some students have packed lunches.
Some students have a cooked lunch.
56 out of the 89 students who have packed lunch are in Year 10.
There are 72 Year 11 students.
Work out how many Year 10 students have a cooked lunch.
HELP I HAVE TO DO THIS TOOO
Answer:
The correct answers are in the picture I put. I hope these help!
Step-by-step explanation:
When calculating positive and negative rational numbers keep these rules in mind-
If one sign is positive and the other is negative, then the answer is negative- For example 5 ÷ -6 = -5/6If both the signs are positive, then the answer is positiveMore so, if BOTH the signs are negative, then the answer is ALSO positiveIf you are 60 inches tall and you cast a 80 inch shadow, how long is a shadow of a building if the shadow is 120 inches?
Answer:
140 inches i think
Step-by-step explanation:
Answer:
160 inches
Step-by-step explanation:
20 is 1/3 of 60 and 60+20=80 so
1/3 of 120 is 40 and 120+40=160
What is the meaning of the expression 45 x (10 - 2)?
The expression is worth 45 times as much as (10 – 2).
The expression is worth 10 times as much as (45 x 2).
The expression is worth 45 less than (10 – 2).
The expression is worth twice as much as (45 – 10). pls answer fast i have a time limit
Answer:
The expression is worth 45 times as much as (10 – 2).
A McDonald's cheeseburger cost $0.79 in 1999. Today that cheeseburger costs $1.00. What is the percent change?
A) 26.58% Increase
B) 21% Decrease
C) 21% Increase
D) 26.58% Decrease
Answer:
The percentage change from 0.79 to 1.00 is 26.58 % increase
Step-by-step explanation:
((1.00 - 0.79) / 0.79) * 100 = 26.58%
Answer:
26.58% Increase
Step-by-step explanation:
Using the formula %Increase=100×final-initial/initial
%Increase=100×1-0.79/0.79=26.58%
how to solve 6r - 1 + 6r =11
Answer:
r = 1
Step-by-step explanation:
The equation is,
→ 6r - 1 + 6r = 11
Now the value of r will be,
→ 6r - 1 + 6r = 11
→ 12r = 11 + 1
→ r = 12/12
→ [ r = 1 ]
Hence, the value of r is 1.
Answer:
The answer is 1 r is equal to 1
Step-by-step explanation:
please help hurry 20 points please I beg you
Answer:
Step-by-step explanation:
1
Nick went canoeing on the river. He traveled 1 mile in 17 minutes. At this rate, how far will he travel in an hour and 25 minutes?
Answer:
5 miles
Step-by-step explanation:
I hope this helps :)
Help pls. Also wdym this is to short yk why so long >:/
Answer:
Y= mx + b
so Y = 1/3x + 2
just substitute
If xx and y vary directly and y is 21 when x is 7, find y when x is 5
Answer:
y = 15
Step-by-step explanation:
We need to solve for k
y = x
21 = 7k Divide both sides by 7 to solve for k
3 = k
y = xk
y = 5(3)
y = 15
Answer: y = 15
Step-by-step explanation:
To the nearest square meter, what is the curved surface area of the half pipe if it’s 7 m long?
The radius is 2.5 m
Answer: 55 m²
Step-by-step explanation:
The arc length of a half-circle is πr, so the area of the curved surface is A = πrl = π(2.5 m)(7 m) = 17.5π m² ≈ 55 m²