Chapter 6

Front

What is the formula to calculate speed?

Back

Speed = Distance ÷ Time

Front

If Ernie travels 195 miles in 3 hours, what is his speed in miles per hour?

Back

65 miles per hour

Front

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

Back

Distance = Speed × Time

Front

What is a unit rate?

Back

A unit rate is a rate in which the denominator is 1.

Front

If a cashier rings up 2 customers in 8 minutes, how many customers can he ring up in 1 minute?

Back

0.25 customers per minute

Front

What is the unit rate of a pump that moves 42 gallons in 7 minutes?

Back

6 gallons per minute

Front

How do you convert hours to minutes?

Back

Multiply the number of hours by 60.

Front

If Jen rides her bike 15 miles in 2 hours, how do you calculate her speed?

Back

Speed = Distance ÷ Time = 15 miles ÷ 2 hours = 7.5 miles per hour.

Front

What is the relationship between distance, speed, and time?

Back

Distance = Speed × Time; Time = Distance ÷ Speed; Speed = Distance ÷ Time.

Front

If a unit rate is 5 miles per hour, what does this mean?

Back

It means the object travels 5 miles in 1 hour.