body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Envision Math 2.0: Grade 6, Volume 2

EM

Envision Math 2.0: Grade 6, Volume 2 View details

5. Understand Rates and Unit Rates

Continue to next subchapter

Exercise 13 Page 287

Use the rate given in the graph to calculate the unit rate.

46

Practice makes perfect

We want to know how many miles x the car will travel during 4 hours. To do this, we will use the information in the graph to calculate the unit rate.

unit rate

Let's write a ratio to show the rate 184 miles per 16 hours. 184miles/16hours or 184/16 To find the unit rate, we write an equivalent rate with a denominator of 1.

184/16

a/b=.a / 16./.b / 16.

184÷ 16/16÷ 16

Calculate quotient

11.5/1

The unit rate is 11.5 miles per hour. Now we can use the unit rate to find the number of miles the car will travel in 4 hours.

11.5/1

a/b=a * 4/b * 4

11.5* 4/1* 4

Multiply

46/4

The car will travel 46 miles in 4 hours. Therefore, the value of x is 46.

Subchapter links

Do You Understand? p.286

Do You Know How? p.286

Practice & Problem Solving p.287-288

Assessment Practice p.288