Question

The length of a rectangle is 15 inches, and its width is 10 inches. If the area must remain 150 square inches, and the length is increased by 10 inches, by how much must the width be decreased? A) by 2 inches B) by 3 inches C) by 4 inches D) by 5 inches

Answer 1

3.33333

Explanation:

You have to put:

If 15 ------------- becomes 5

then 10--------- becomes X

like this type of rule says, you should do:

(10x5)/15= 3.33333

Answer 2

Answer: C) by 4 inches

Step-by-step explanation: If the length becomes 25, then (25)(6) = 150 are the new dimensions.