WorksheetsUnit 4 Rates, Ratios and Percents Review
Total questions: 9
Worksheet time: 45mins
What is K the constant of Proportionality?
Hint from your STAAR chart
K= y/x
9.3
9.5
8
8.3
A box of cereal weighs 14 ounces and costs $2.66. What is the price per ounce of the cereal? Hint Unit rate DIVIDE!
$0.14
$0.19
$0.21
$0.24
Joey is 4 feet 8 inches tall. There are 2.54
centimeters in 1 inch. What is Joey’s height in
centimeters?
Hint Set up a proportion and solve! you can only have 2 different units.
142.24 cm
152.4 cm
157.48 cm
172.8 cm
Romeo paid $380.75 in car repairs. The sales tax rate is 7.5%. Which of the following is a reasonable estimate for the total Romeo paid to repair his car?
Step 1: Change the % to a decimal
Step 2: Multiply
Step 3: Tax and tip ADD. Discount SUBTRACT
$28.50
$410.00
$352.50
$442.00
Javier worked the following hours in the month of October. What was the percent increase from week 2 to week 4?
difference = %
original 100
100
33
8
32
The cake walk fundraiser sold 44 tickets during the first day of sales. This was 22% of the total sales. How many tickets were sold to the cake walk fundraiser?
% = Part
100 Whole
160 tickets
180 tickets
200 tickets
240 tickets
Marie purchased a $49.00 gift for a baby shower. She uses a coupon that offers 20% off. How much will Marie spend on the gift after the coupon?
Step 1: Change the % to a decimal
Step 2: Multiply
Step 3: Tax and tip ADD. Discount SUBTRACT
$9.80
$58.80
$39.20
$49.00
The doctor recommended that Matt decrease the number of calories he consumed from 2,500 to 1,800. By what percent did the number of calories decrease?
difference = %
original 100
28%
39%
Ian measures 9 kg of rice. One kilogram is approximately equal to 2.2 pounds. Which measurement represents the number of pounds of rice?
Hint** Set up a proportion and solve!
18 pounds
19.8 pounds
21.3 pounds
22 pounds
