SOLUTION: The area of a rectangle is 18 square inches. The length of the rectangle is twice its width. Find the length and width of the rectangle. bxh=18in.??

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Question 94715: The area of a rectangle is 18 square inches. The length of the rectangle is twice its width. Find the length and width of the rectangle.

bxh=18in.??
Answer by BurningFlame_marc(77) About Me  (Show Source):
You can put this solution on YOUR website!
Hello!
For this, we can say that x is equal to the width. Since the length is twice it's width, we can say that 2x is equal to the length. We know that the formula to get the area is length%2Awidth, so that means that x%2A2x=18 in other words 2x%5E2=18. Let's divide both sides by 2 x%5E2=9. let's find the square root of both sides sqrt%28x%5E2%29=sqrt%289%29. So x=3. Since the width is 3 that means the length is 6 because the length is twice the width.

The length is 6 inches and the width is 3 inches.

I hope I helped you!