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.

Big Ideas Math Geometry, 2014

BI

Big Ideas Math Geometry, 2014 View details

Maintaining Mathematical Proficiency

Continue to next subchapter

Exercise 7 Page 461

Solve for the variable by using the Cross Products Property.

x=9

Practice makes perfect

To solve the proportion, we will start by using the Cross Products Property.

x/12=3/4

Cross multiply

x* 4=12*3

Multiply

4x=36

From here, we will continue solving for x by using the Properties of Equality.

4x=36

.LHS /4.=.RHS /4.

x=9

Subchapter links

Exercises p.461