Question
Find the width of a rectangle with a perimeter of 90 and a length of 15.
(1 point)
Responses
90
90
15
15
45
45
30
30
(1 point)
Responses
90
90
15
15
45
45
30
30
Answers
GPT 3.5
To find the width of a rectangle with a perimeter of 90 and a length of 15, we can use the formula for the perimeter of a rectangle which is P = 2L + 2W, where P is the perimeter, L is the length, and W is the width.
Given that the length is 15, we substitute these values into the formula:
90 = 2(15) + 2W
Simplifying the equation:
90 = 30 + 2W
Subtracting 30 from both sides:
60 = 2W
Dividing both sides by 2:
30 = W
Therefore, the width of the rectangle is 30.
Given that the length is 15, we substitute these values into the formula:
90 = 2(15) + 2W
Simplifying the equation:
90 = 30 + 2W
Subtracting 30 from both sides:
60 = 2W
Dividing both sides by 2:
30 = W
Therefore, the width of the rectangle is 30.