Find the width of a rectangle with a perimeter of 90 and a length of 15.
Responses
90
90
15
15
45
45
30
The width of the rectangle would be (90 - 2*15)/2 = 30.
To find the width of a rectangle with a given perimeter of 90 and a length of 15, we can use the formula for the perimeter of a rectangle, which is given by:
Perimeter = 2 * (length + width)
Substituting the given values into the formula:
90 = 2 * (15 + width)
Dividing both sides of the equation by 2:
45 = 15 + width
Now, let's isolate the variable 'width' by subtracting 15 from both sides:
45 - 15 = 15 - 15 + width
30 = width
Therefore, the width of the rectangle is 30.