Question

The ratio of the width to the length of a painting is 3 to 7. If the painting is 42 in. long how wide is it

Answer 1

If length is 42 inches, then width is 18 inches.

Step-by-step explanation:

We are given ratio of width to the length of a painting i.e 3 to 7. If the painting is 42 inches long, then how wide it is?

Solving:

$\frac{width}{length}=\frac{width}{length}\\ \frac{3}{7}=\frac{w}{42}\\ Cross\,\,multiply:\\3*42=w*7\\126=w*7\\w=\frac{126}{7}\\w=18$

So, If length is 42 inches, then width is 18 inches.

Keywords: Ratio

Learn more about Ratio at:

• brainly.com/question/9880052
• brainly.com/question/10781917
• brainly.com/question/2707032

#learnwithBrainly