Question

(a) The perimeter of a rectangular parking lot is 310 m.

If the width of the parking lot is 64 m, what is its length?
m
Length of the parking lot: []

Answer 1

91 meters

Explanation:

The perimeter of a rectangle can be found using:

p=2l+2w

We know that the perimeter is 310 meters. We also know the width is 64 meters. We can substitute 310 in for pi and 64 in for w.

310=2l+2(64)

310=2l+128

To solve the equation, we want to find out what w is. In order to do this, we have to get w by itself. Perform the opposite of what is being done to the equation. Keep in mind, everything done to one side, has to be done to the other.

First, subtract 128 from both sides, because 128 is being added on to 2l.

310-128=2l+128-128

310-128=2l

182=2l

Next, divide both sides by 2, because l is being multiplied by 2

182/2=2l/2

182/2=l

91=l

The length of the parking lot is 91 meters

Answer 2

91 M

Explanation:

L + L + W+ w. (Keeping the dog in With the fence) So take away the width and dived the rest by 2 for each length

Hope it helps.