Answer:
it would be 2
1 2/5 - (-3/5) = 2
What equation below shows that the cost, c, depends on how many $5 hats, h, someone buys?
c = 5h
c = h + 5
h = 5 + c
h = 5c
Answer: c = 5h
Step-by-step explanation:
C is equal to the total cost, and h is equal to the number of hats bought.
So, as a verbal equation, we have:
total cost = price x number of hats bought
We know the price ($5) and the variables, so we can substitute these:
c = 5h
Hope this helps! :)
please answer the question and show how you got it :)
Answer:
0
Step-by-step explanation:
-17+20+(-3) so you take the (-3) and make it to a -3 and you also take away the +
-17+20-3
\ / |
3 -3= 0
Please help, screenshot!
Answer:
4/7
Step-by-step explanation:
class total = 21
chance of picking one of 12 boys out of 21.
12/21 which can be simpilfied to 4/7
A pitcher contains 14.25 cups of iced tea. You drink 2.5 cups of the tea each morning and 2.25 cups of the tea each evening. When will you run out of iced tea?
Answer:
You will run out of iced tea in 3 days (a total of 3 mornings and 3 evenings)
Step-by-step explanation:
Day 1 - 9.5 cups left
14.25 - 2.5 - 2.25 = 9.5
Day 2 - 4.75 cups left
9.5 - 2.5 - 2.25 = 4.75
Day 3 - 0 cup left
4.75 - 2.5 - 2.25 = 0
Answer: You will run out of iced tea in 3 days
Step-by-step explanation:
2.5 + 2.25 = 4.75
14.25/4.75 = 3
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
Please state your answer and explain clearly how you got to your answer. Please clarify and be specific. Thank you so much for you help!
Answer:
D. 1200 gallons
Step-by-step explanation:
Fractions of the total are given, as is the quantity the difference of those fractions represents. These can be used to write an equation to find the total.
SetupLet g represent the total number of gallons of fuel sold. Then the number of gallons of 87-octane sold is 0.50g, and the number of gallons of 89-octane sold is 0.35g. The difference is said to be 180 gallons:
0.50g -0.35g = 180
SolutionCollecting terms gives ...
0.15g = 180
Dividing by the coefficient of g, we find ...
g = 180/0.15 = 1200
The gas station sold 1200 gallons of fuel last weekend.
__
Additional comment
That's 600 gallons of 87-octane; 420 gallons of 89-octane; 120 gallons of 92-octane; and 60 gallons of 99-octane.
1. Cara has saved $4,000 to buy a car. Rick wants to buy a new television set. He has saved 1/10 as much as Cara. How much has Rick saved. Explain how you got your answer.
2.Nathan’s orchestra has 18 string musicians, 9 percussion musicians, 15 brass musicians, and 12 woodwind musicians. Six of the musicians cannot play in the next performance. If the remaining musicians plan to sit in rows of 6 chairs, how many rows of chairs are needed? Write an equation and/or explain how you solved the problem.
3.A bakery sold croissants to local restaurants. The table shows how many croissants were sold to each restaurant. The croissants were sold 6 to a box.
Croissants Sold
Restaurant
Number of Croissants
The Coffee Counter
546
La Claudette
768
Bon Jour
858
How many boxes of croissants did the bakery sell to La Claudette? Write an equation and/or explain how you solved the problem.
4.Gina is training for a marathon. She ran 4.6 miles on Friday and 6.75 miles on Saturday. On Sunday, she ran13 miles. How much farther did she run on Sunday than she did on Friday and Saturday combined? Write an equation and/or explain how you solved the problem.
5.At a dry cleaning store, it costs $1.79 to clean a man’s dress shirt and $8.25 to clean a suit. Thomas brought in 4 shirts and 1 suit to be cleaned. How much will he be charged for the dry cleaning? Write an equation and/or explain how you solved the problem.
6.At the grocery store, Sunil buys 5 pounds of chicken breast for $1.59 per pound. He also buys a jar of tomato sauce that costs $3.98. He gives the cashier a $20 bill. How much change should Sunil receive? Write an equation and/or explain how you solved the problem.
7. Maria likes to watch Olympic swimmers on TV. In the closest race, her favorite swimmer lost by two thousandths of a second. What is this amount represented as a decimal?
8.The table below shows the cost of fruits at a produce stand. Alberto bought two bananas, a kiwi, and a pound of apples. How much did he spend? Write an equation and/or explain how you solved the problem.
Fruit
Cost
Apples
$2.05 per pound
Bananas
$0.39
Kiwis
$0.50 each
9. Students are selling muffins at a school bake sale. One muffin costs $0.25, 2 muffins cost $0.37, 3 muffins cost $0.49, and 4 muffins cost $0.61. If this pattern continues, how much will 6 muffins cost? Write an equation and/or explain how you solved the problem.
10. The four highest highest scores in a dance competition were 7.509, 7.3, 7.5, and 7.51. List the scores from greatest to least.
Answer:
Answer for number 6: $8.10
Step-by-step explanation:
First of all, you start by multiplying 1.59 by 5. $1.59 x 5 = $7.95. Now, all you have to do is add $7.95 and $3.98. $7.95 + $3.98 = $11.90. Now the last this to do is Subtract $11.90 from $20.00. $20.00 - $11.90 = $8.10. You will receive $8.10 if he gives the cashier a $20.00 dollar bill.
A school carnival sold 27 early-admission tickets and 3 regular tickets. What percentage of the tickets sold were early-admission tickets?
Answer:
Step-by-step explanation:
There is a total of 27 tickets, and 3 of them are regular tickets
To find the percentage, we divide early-admission tickets by the regular tickets , which is 27/3.
We can then simplify 27/3, or 9 which is 90%.
Answer:
90%
Step-by-step explanation:
? + 4a-5 = 3a-1? should it be negative?
Please help my sister finish this
i need h e l p
A new roller coaster just opened at Friday Fun Park. When Lisa got in line, a sign said the wait from that point would be 45 minutes. The actual wait was only 35 minutes. What is the percent error for the park sign's estimate?
If necessary, round your answer to the nearest tenth of a percent.
Answer: 28.6%
Step-by-step explanation:
To calculate the percent error:
1) Subtract the estimated amount by the actual amount
45-35=10
2) Divide the answer by the actual amount
10/35=0.2857
3) Multiply the answer by 100 to get the percent error
0.2857×100=28.57
Rounded that equals 28.6%
Answer: hope this helps ♡
The percent error for the park sign's estimate is 29%.
Step-by-step explanation:
45 - 35 = 10
(10 out of 35 because it's the actual amount)
10 of 35 in percentage:
(10 ÷ 35) × 100 =
0.28571..... × 100 =
28.5714.....% ≈ 29%
ihopemyasnweriscorrect :)
How do you know whether two quantities x and y are proportional?
A. Every ratio yx for related pairs of x and y is equivalent.
B. Every sum x + y is the same for related pairs of x and y.
C. Every x term is a multiple of the previous term.
D. Every difference x – y is the same for related pairs of x and y.
Answer:B hope this helps you
Step-by-step explanation:
Answer:
B. Every sum x + y is the same for related pairs of x and y.
Step-by-step explanation:
;-; I suck
Help me please il give 20 points!
Answer: 1. a. 15 b. 11 c. 2 d. 7 e. 5.5
2. Stem: Leaf:
1 9
2 5, 9
3 3, 3, 8
4 0, 7, 9
5 4, 5
6 1, 5
7 2, 7
8 1
3. a. 13 inches b. I'm pretty sure that it is the second quarter because there is more snow. c. The first quarter because it's section is more spread out among the numbers.
Step-by-step explanation:
help???? i’m no good at math
Answer:
Apply the distributive property to the left-hand side of the inequality.
Step-by-step explanation:
Using PEMDAS, what you need to do first is clear!
P -> parentheses ( distribute, clear them out, etc. )
E -> exponents
M -> multiplication
D -> division
A -> addition
S -> subtraction
Going in order, you would apply the distributive property first to clear out the parentheses.
NEED HELP ASAP Triangle JKL was dilated with the origin as the center of dilation to create triangle J'K'L'. The triangle was dilated using a scale factor of 1/2 Which rule represents the dilation applied to triangle J K L to create its image, triangle J′ K′ L′ ?
Answer:
Step-by-step explanation:
C
2−
2
1
n=3n+162, minus, start fraction, 1, divided by, 2, end fraction, n, equals, 3, n, plus, 16
�
=
n=n, equals
To solve this equation, we can first simplify the left-hand side:
2^(3n+1) / (2^n - 1) = 3n + 16
We can then multiply both sides by 2^n - 1 to eliminate the denominator:
2^(3n+1) = (3n + 16)(2^n - 1)
Expanding the right-hand side:
2^(3n+1) = 6n*2^n + 16*2^n - 3n - 16
Simplifying:
2^(3n+1) = (6n - 3n)*2^n + (16 - 16)
2^(3n+1) = 3n*2^n
Dividing both sides by 2^n:
2^(n+1) = 3n
Taking the logarithm of both sides (with any base), we get:
n log(2) + log(2) = log(3n)
n = (log(3n) - log(2)) / log(2)
We can use a calculator to evaluate this expression, or simplify it further using logarithm rules:
n = log2(3n/2)
We can now use iterative methods or a graphing calculator to find a numerical solution for n. The solution is approximately 7.524.
-10x+18y=4 How many solutions are there?
Answer:
there are infinite solutions! for any value of x and y, as long as it equals to 4, it is a solution
for example
if x was 1.119248129812, as long as -11.19248129812 and 18y add to 4, it is a solution
Step-by-step explanation:
Find m∠1 - Its Geometry
Answer:
m∠1 = 98°
Step-by-step explanation:
1.(‐5)(8) 2.(4)(‐4) 3.(‐1)(‐9) 4.(5)(6) 5.(12)(‐2) 6.(‐15)(9) 7.(5)(‐6) 8.6(‐6) 9.(‐27)(14) 10.(‐32)(0) 11.(128)(‐3) 12.(‐54)(‐4) 13.(+21) ÷ (+7)
Answer:
1, (-5)(8)=-40 2, (4)(-4)=-16. 3, (-1)(-9)=9. 4 , (5)(6)=30. 5, (12)(-2)=-24. 6, (‐15)(9) =-135. 7. (5)(‐6)= -30. 8. 6(‐6) = -36. 9. (‐27)(14) = - 378. 10.(‐32)(0) = 0. 11.(128)(‐3)= -384. 12.(‐54)(‐4) = 216. 13.(+21) ÷ (+7)= +3
Step-by-step explanation:
positive number multiplied by positive number gives positive number
negative number (-ve) times positive number (+ve) gives -ve
-ve times -ve gives +ve
+ve times -ve gives -ve
hope it helps
How many bucketloads would it take to bucket out the world’s oceans? Write your answer in scientific notation.
Some useful information:
The world’s oceans hold roughly 1.4×10^9 cubic kilometers of water.
A typical bucket holds roughly 20,000 cubic centimeters of water.
There are 10^15 cubic centimeters in a cubic kilometer.
Write your answer in scientific notation using the format:
4.2x10^5
with no spaces
The number of buckets which will contain the water of oceans is required.
The number of buckets that will be required is \(7\times 10^{19}\)
Unitary methodTotal amount of water held in the oceans = \(1.4\times 10^9\) cubic kilometers
Total amount of water in one bucket = 20000 cubic centimeters
The conversion factor of cubic centimeter to cubic kilometer is
\(1\ \text{cubic centimeter}=10^{-15}\ \text{cubic kilometer}\)
\(20000\ \text{cubic centimeter}=2000\times 10^{-15}\ \text{cubic kilometer}\)
Let n be the number of buckets
\(n\times 20000\times 10^{-15}=1.4\times 10^9\\\Rightarrow n=\dfrac{1.4\times 10^{9}}{20000\times 10^{-15}}\\\Rightarrow n=7\times 10^{19}\)
Learn more about unitary method:
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PLS HELP ASAP!!!!!!!!!!!!!
Answer:
ok
Step-by-step explanation:
PLS HELP ASAP! WILL GIVE BRAINLIEST!!! Jason rode his bike in a sprint trial for 15 minutes and complicated a distance of 9 3/4 miles. In his second sprint trial he rode for 20 minutes and completed a distance of 12 2/3 miles.
What is the difference in his speed in miles per hour between the two sprint trials?
(A) The first trial was 3 miles per hour slower.
(B) The first trial was 3 miles per hour slower.
(C) The second trial was 1 mile per hour faster.
(D) The second trail was 1 mile per hour slower.
Plumber 1 charges $50 per hour plus a flat fee of $20.
Plumber 2 charges $60 an hour with no additional fee.
Complete the table and write a system of equations to represent the costs, where h is the number of hours and c is the total cost.
Answer:
H: 0, 1, 2, 3, 4, 5
plumber 1: 20, 70, 110, 160, 210, 260
plumber 2: 0, 60, 120, 180, 240, 300
plumber 1: C = 50h + 20
plumber 2: C = 60h
What is the slope of y=6x+2?
Answer: __________
Answer:
6
Step-by-step explanation:
PLS HELP!
I will give brainlyest to right answer
Answer:
\(\textsf{C)}\quad 3x-45=10\)
Step-by-step explanation:
Given equation:
\(\dfrac15x-3=\dfrac23\)
Multiply both sides by 3:
\(\implies 3\left(\dfrac15x-3\right)=\dfrac23 \cdot 3\)
\(\implies \dfrac{3 \cdot 1}{5}x-3 \cdot 3=\dfrac{2 \cdot 3}{3}\)
\(\implies \dfrac35x-9=2\)
Multiply both sides by 5:
\(\implies 5\left(\dfrac35x-9\right)=2 \cdot 5\)
\(\implies \dfrac{5 \cdot 3}{5}x-5 \cdot 9=10\)
\(\implies 3x-45=10\)
URGENT PLS HELP NOW
Choose the expression that is equivalent to fraction with 6 raised to the negative tenth power in the numerator and 6 raised to the fourth power times 6 raised to the zero power in the denominator.
−614
negative 1 divided by 6 raised to the fourteenth power
614
1 divided by 6 raised to the fourteenth power
The expression will be 1 divided by 6 raised to the fourteenth power .
Expression ⇒ \(\frac{1}{6^{14}}\) .
Given,
Fraction with 6 raised to the negative tenth power in the numerator and 6 raised to the fourth power times 6 raised to the zero power in the denominator.
Now,
Writing in terms of expression:
\(\frac{6^{-10} }{6^4*6^0}\)
Simplifying the expression,
Expressing \(6^{-10}\) in denominator part,
⇒ \(\frac{1}{6^{10}*6^{4}*6^{0}}\)
As \(6^0\) is equals to 1.
So,
⇒ \(\frac{1}{6^{14}}\)
Therefore option D is correct.
Know more about exponents,
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A number line can represent positions that are north and south of a truck stop on a highway. Decide whether you want positive positions to be north or south truck stop. then plot the following position on a number line.
what value of x makes the equation true 3/4x + 9 = 3
A. x = -8
B. x= -1/2
C. x = 1
D. x = 16
Answer:
\(\boxed{\sf{A. \quad X=-8}}\)Step-by-step explanation:
To find the value of x, isolate it on one side of the equation.
3/4x+9=3
First, subtract by 9 from both sides.
3/4x+9-9=3-9
Solve.
3-9=-6
Rewrite the problem down.
3/4x=-6
Multiply by 4 from both sides.
4*3/4x=4(-6)
Solve.
3x=-24
Then, you divide by 3 from both sides.
3x/3=-24/3
Solve.
Divide these numbers goes from left to right.
-24/3=-8
x=-8
Therefore, the correct answer is A. x=-8.Variables and negative signs should appear in the answer.
I hope this helps you! Let me know if my answer is wrong or not.
Answer:
x = -8
Step-by-step explanation:
Subtract 9 both sides:
⇒ 3/4x + 9 = 3
⇒ 3/4x + 9 - 9 = 3 - 9
Simplify the L.H.S and the R.H.S:
⇒ 3/4x = -6
Use cross multiplication:
⇒ 3x/4 = -6
⇒ 3x = -6 × 4
Simplify the R.H.S:
⇒ 3x = -6 × 4
⇒ 3x = -24
Divide 3 both sides:
⇒ 3x/3 = -24/3
⇒ x = -8
Sam is packing gift boxes with fruit. For each apple, he packs 3 plums, and 5 oranges. If he puts three apples in a box, how many plums and oranges will Sam put in the box?
Answer:
9 plums and 15 oranges
Step-by-step explanation:
3+3+3 = 9 plums
5+5+5= 15 oranges
1+1+1= 3 apples
Please help! Thank you!
Answer:
525
Step-by-step explanation:
If it's just asking to find the average of heads then times it by 20 then just do 32+28+21+24 to get 105 and divide it by 4 to get 26.25 then times it by 20 since this is the average of 50 throws and it's asking for the average of 1,000 throws which is 525