Question

Create a proportion that can be used to solve for x, the length of rv.

1) 4/x = 9/12
2) 4/x = 12/15
3) 9/x = 4/12
4) 9/x = 12/15

Answer 1

To solve for x, the length of rv, in the given proportions, set up the proportion and cross multiply. The correct proportion to solve for x is 9/x = 12/15. Solving for x gives x = 11.25, so the length of rv is 11.25.

Step-by-step explanation:

To solve for x in a proportion, we need to set up the proportion and cross multiply. The correct proportion to solve for x, the length of rv, is option 4) 9/x = 12/15.

Setting up the proportion:

9/x = 12/15

Cross multiplying:

9 * 15 = 12 * x

135 = 12x

Divide both sides by 12:

135/12 = x

x = 11.25

Therefore, the length of rv is 11.25.