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
The perimeter of a rectangle is given by the formula P = 2L + 2W, where L is the length and W is the width.
Given that the perimeter is 90 and the length is 15, we can substitute these values into the formula and solve for W:
90 = 2(15) + 2W
90 = 30 + 2W
2W = 90 - 30
2W = 60
W = 60/2
W = 30
Therefore, the width of the rectangle is 30.
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: P = 2(length + width).
Given that the length is 15, we can substitute it into the formula:
90 = 2(15 + width).
Next, we can simplify the equation:
90 = 30 + 2w.
Subtracting 30 from both sides of the equation:
60 = 2w.
Finally, dividing both sides by 2, we find:
w = 30.
So, the width of the rectangle is 30 units.
To find the width of a rectangle with a given perimeter and length, you can use the formula for the perimeter of a rectangle, which is P = 2L + 2W.
In this case, we have a perimeter of 90 and a length of 15. So we can substitute these values into the formula and solve for the width (W):
90 = 2(15) + 2W
90 = 30 + 2W
Next, we can subtract 30 from both sides of the equation to isolate the term with the width:
90 - 30 = 2W
60 = 2W
Finally, we divide both sides of the equation by 2 to solve for W:
60 divided by 2 = 2W divided by 2
30 = W
Therefore, the width of the rectangle is 30.