Ratios and Proportions
Are the ratios 2:3 and 1:4 equivalent?
No
Marie runs 8.85 kilometers every morning. One day, she runs 4.65 kilometers and then stops to take a break. How much further does Marie have left to run?
4.2
What value of b is a solution to this equation?
10b = 40
b = 4
Add:
5 + (–4) =
1
Are these ratios equivalent?
21 dogs for every 27 cats
14 dogs for every 18 cats
Yes
Divide. Give the exact answer, written as a decimal.
2.7 ÷ 9 =
0.3
Write the sentence as an equation.
the sum of w and 174 is equal to 339
Type a slash ( / ) if you want to use a division sign.
w + 174 = 339
Subtract:
–1 − 1 =
-2
Find the unit rate.
684 newspapers in 6 piles = ? newspapers per pile
114
Write 2 57/98 as an improper fraction.
253/98
What value of s is a solution to this equation?
–27 = s – 15
s = -12
Subtract:
–5 − (–5) =
0
Jessica is shopping for a new car. She found a blue car that has a 12-gallon gas tank and can go 384 miles on one tank. She found a silver car that has a 14-gallon gas tank and can go 504 miles on one tank. Which car gets better gas mileage?
Silver
Add. Write your answer as a fraction or as a whole or mixed number.
2 4/5 + 9/10 =
3 7/10
Write the sentence as an equation.
the product of j and 140, increased by 185 is 181
140j + 185 = 181
Add:
–11 + (–15) + 5 =
-21
How do you write 24/25 as a percentage?
Write your answer using a percent sign (%).
96%
During snack time at preschool, the teacher divided 9 3/4 gallons of milk evenly among 3 students. How much milk did each student get?
Write your answer as a fraction or as a whole or mixed number.
3 ¼
Solve for f.
f/2 + 10 = 13
f = 6
Samuel is playing the Big-Time Builders video game. At the beginning of Samuel's turn, his score was
–14 points. After building a high-rise apartment building, his score rose to 36 points.
What was the change in Samuel's score?
50 points