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.

Glencoe Math: Course 3, Volume 2

GM

Glencoe Math: Course 3, Volume 2 View details

Are You Ready?

Continue to next subchapter

Exercise 3 Page 504

Solve for the variable by using the Cross Products Property.

14.8

Practice makes perfect

To solve the proportion, we will use the Cross Products Property.

12/z = 30/37

Cross multiply

12(37) = 30z

.LHS /30.=.RHS /30.

12(37)/30 = 30z/30

SplitIntoFactors

Split into factors

6 * 2(37)/6 * 5 = 30z/30

CancelCommonFac

Cancel out common factors

6* 2(37)/6* 5 = 30z/30

Simplify quotient

2(37)/5 = z

Multiply

74/5 = z

Calculate quotient

14.8 = z

Rearrange equation

z = 14.8

Subchapter links

Quick Check p.504