Rates and Percentages Study Guide

It takes a tree 6 years to grow 7 feet. At this rate, how much will the tree grow in 42 years?

• 12 feet

• 21 feet

• 42 feet

• 49 feet

Mx. Bowie purchased 10 flowers for $15.40. How much was the price of one flower?

• $0.54

• $1.54

• $5.40

• $6.80

Mr. Griffin purchased 4 pounds of apples for $4.16. At this price how much would 6 apples cost?

• $1.04

• $3.05

• $6.24

• $7.28

If Georgia collects 15 shells in 3 minutes, how many shells will she collect in 30 minutes?

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It takes a train 7.4 hours to travel between South station in Boston,MA and Penn Station in New York City. If these stations are 466.2 miles apart, at what rate is the train traveling?

• 63 mph

• 63.2 mph

• 86.2 mph

• 158.7 mph

During a rain storm a rain barrel collected 10 inches or rain over a span over 5 hours. The rain fell at a steady rate, how many inches of rain fell each hour?

• 0.5

• 2

• 2.5

• 5

A wave machine is currently creating 2 waves every 16 seconds. If the wave machines speed were increased to 4 times the current rate, at what speed would the machine be creating waves?

• 0.125 waves / second

• 0. 0.5 waves / second

• 2 waves / second

• 8 waves / second

Ms. Atkins purchased 8 bags of bird seed for $72.48. What was the price per bag of bird seed?

• $9.09

• $9.06

• $72.48

• $62.48

• 16 ounces

• 32 ounces

• 64 ounces

• 72 ounces

Andy drove his truck 110 kilometers in one hour. What is the approximate distance he drove in miles. (Hint there are 1.61 km in 1 mile) Round to the nearest tenth.

• 55.8 miles

• 58.3 miles

• 68.3 miles

• 70.1 miles