How to solve question 5 and 6?
1 answer:
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Answer:
Length: 40 inches
Width: 10 inches
Step-by-step explanation:
Let width of the rectangle.
From the information "length of a rectangle is four times its width", we can express the length as:
Length =
- - - -
Perimeter = (formula for perimeter of rectangle)
(combine like terms)
inches
∴ The width of the rectangle is 10 inches.
To find the length of the rectangle, we can use substitution:
Length =
inches
∴ The length of the rectangle is 40 inches.
Hope this helps :)