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.

Dashboard

MH

McGraw Hill Glencoe Algebra 1, 2012 View details

6. Ratios and Proportions

Finish the assignment

Continue to next subchapter

Exercise 10 Page 115

You can use cross products to determine if the ratios are equivalent.

Yes.

Practice makes perfect

To determine if the given ratios are equivalent, we will set them equal to one another and use cross products. If the resultant equation is true, then the ratios are equivalent.

3/7? =18/42

CrossMult

Cross multiply

3(42)? =7(18)

Multiply

126=126

Because the cross products resulted in a true statement, we know that the pair of ratios are equivalent.