The perimeter of a rectangle is 87 ft. The length is x ft and the width is 19 ft. What is the length of the rectangle, in feet? Write and solve an equation.

Perimeter is all sides added up.

So, we know the width is 19ft and the length is x feet. We also know that the perimeter is 87 feet.

What we can do is make an equation to solve for x.

2x + 2(19) = 87

First, multiply 2 and 19.

2 x 19 = 38

2x + 38 = 87

Next, subtract 38 from both sides to move 38.

2x = 87 - 38

2x = 49

Lastly, divide both sides by 2 to get the value of x.

x = 49/2

x = 24.5

Thus, the length of the rectangle is 24.5ft

We can plug it into our equation to check if its correct.

2(24.5) + 2(19) = 87

24.5 x 2 = 49

2 x 19 = 38

49 + 38 = 87

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step-by-step explanation:

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step-by-step explanation: