Find the width of a rectangle with a perimeter of 90 and a length of 15. draw and label the rectangle first to set up your problem

width = 30

Step-by-step explanation:

We know that the formula for finding the perimeter if a rectangle is:

Perimeter of a rectangle = 2 (l + w)

We are given the value of the perimeter and the length so we can find the width of the rectangle by putting in the given values.

Perimeter of rectangle = 2l +2w

90 = 2(15) + 2w

90 = 30 + 2w

90 - 30 = 2w

w = 60 / 2

w = 30

Therefore, the width of the rectangle, with length 15 and perimeter 90, is 30.

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5