Ratios and Proportions Review

It costs $4.00 to rent a scooter for 1/4 hour.  Select the statements that correctly match the ratio.
a) 1 hour costs $16.00
b) 3/4 of a hour costs $12.00
c) 1/16 hour costs $1.00
d) 1 hour costs $8.00

• a and b
• a, c, and d
• a, b, and c
• b, c, and d

Tags

CCSS.6.RP.A.3B

A boy painted 2/3 of a barn using 1/5 of a can of paint.  How many barns can he paint using one can of paint?

• 3 and 1/3 barns
• 2/15 barns
• 3 barns
• 15/2 barns

Tags

CCSS.7.RP.A.1

Which graph shows only a direct variation between x and y?

• A
• B
• C

Tags

CCSS.8.EE.B.5

If y varies directly as x and the constant of variation is -5, which equation represents this relationship?

• y =1/5x
• y=-5x
• y=-5
• y= x - 5

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

Which is an equation for the direct variation that includes the given data?
  x     y
12   3
20   5
40   10

• y = x - 4
• y = 4x
• y = x - 9
• y = x/4 

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Sandra wants to buy a new controller for $48.97.  If the sales tax is 9.5%, how much sales tax will Sandra pay on her new controller?

• $4.65
• $53.62
• $46.50
• $5.36

Tags

CCSS.7.RP.A.3

A pair of shoes cost $75.00.  If the sales tax is 6.5%, what is the total amount paid for the shoes?

• $4.88
• $488
• $79.88
• $75.32

Tags

CCSS.6.RP.A.3C

About how much interest will be paid on a $1258 loan with a 3½% interest rate over a 6-month time period?

• $44
• $264
• $132
• $22

Tags

CCSS.7.RP.A.3

Which situation best represents a proportional relationship?

• A 40 x 50-inch photo is reprinted into a 8 x 10-inch photo.
• A sloth traveled 1 meter in 1 hour and 2 meters in 2.5 hours. 
• Two sodas are sold for $1.  Ten of the same sodas are sold for $6. 
• One orange has 6 seeds, two oranges had 8 seeds altogether, and 3 oranges had 10 seeds altogether. 

Tags

CCSS.7.RP.A.2A

Richard drives 8 miles to work in 17 minutes.  What is his average rate, in miles per hour. when rounded to the nearest whole number?

• 136
• 64
• 28
• 39

Tags

CCSS.6.RP.A.3B