Check: Review Questions, Ratios, Rates, Proportions, Percents

 A hot air balloon travels 1,470 miles at a constant rate for 6 hours. What is the rate of speed per hour?

An airplane travels at a constant speed of 320 miles per hour. How far, in miles, will the airplane travel in 15 minutes?

A restaurant orders corn tortillas and flour tortillas. The ratio of the number of corn tortillas to the number of flour tortillas is 2:3. What is the ratio of the number of flour tortillas to the total number of tortillas as a fraction? 

There are 4 trucks for every 5 cars in a parking lot. How many trucks and cars could be in the parking lot?

• 64 trucks and 80 cars

•  72 trucks and 73 cards

• 84 trucks and 100 cars

• 96 trucks and 110 cars

A store sells cans of tomatoes priced as shown. Which size can of tomatoes has the lowest cost per ounce?

• 10 oz

• 15 oz

• 18 oz

• 32 oz

At a middle school, 74 students have freckles. There are 258 students in the school. To the nearest tenth of a percent, what percent of the students have freckles?

Seventy-five 6th grade students chose to watch a movie on the last day of school. This is 25% of the 6th grade class. How many total students are in the 6th grade?

A motorcycle can go 50 miles using one gallon of gas. About how many gallons of gas will be used to go 150 kilometers. (1 mile = 1.6 kilometers.)

Sarah earns $400 per week and spends 15% of her earnings on transportation. How much does Sarah spend on transportation every week?

Jenny finished 12 of the 20 lessons in her piano book. Liam has finished the same percent of lessons from his piano book. His book contains 30 lessons. How many lessons has Liam finished?