CSA #3 Review

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a:b'.

Front

If a recipe calls for 2 cups of sugar for every 5 cups of flour, what is the ratio of sugar to flour?

Back

2:5

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total quantity by the number of units. For example, if a car travels 180 miles in 3 hours, the unit rate is 180 miles ÷ 3 hours = 60 miles per hour.

Front

A car travels 180 miles in 3 hours. What is the unit rate of speed in miles per hour?

Back

60 miles per hour

Front

What is the price per item?

Back

The price per item is calculated by dividing the total price by the number of items. For example, if 8 apples cost $4, the price per apple is $4 ÷ 8 = $0.50.

Front

A store sells 8 apples for $4. What is the price per apple?

Back

$0.50

Front

How do you find the total distance traveled at a constant speed?

Back

To find the total distance traveled at a constant speed, multiply the speed by the time. For example, if a car travels at 60 miles per hour for 5 hours, the total distance is 60 miles/hour × 5 hours = 300 miles.

Front

A car travels 180 miles in 3 hours. How far will it travel in 5 hours at the same speed?

Back

300 miles

Front

What is the formula for calculating speed?

Back

Speed = Distance ÷ Time.

Front

If Luke can paint 91 portraits in 7 weeks, how do you find the number of portraits he paints each week?

Back

Divide the total number of portraits by the number of weeks: 91 portraits ÷ 7 weeks = 13 portraits per week.