SOLUTION: Mouse Pad. The area of a rectangular mouse pad is 480 sq centimeters. Its length is 16 centimeters shorter than twice its width.
What are the lengths and width of the mouse pad
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What are the lengths and width of the mouse pad
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Question 77025: Mouse Pad. The area of a rectangular mouse pad is 480 sq centimeters. Its length is 16 centimeters shorter than twice its width.
What are the lengths and width of the mouse pad in centimeters.
I am having problems creating an equation for this to solve. we are doing factoring with standard form. I know the answer is 20 cm and 24 cm but what I have come up with is 2x(x-16)=480. I know that you have to get a 0 on the = side. Can you help me.
Kelly Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website! if we let x=width, y=length we get
where the length is
Substitute 2x-16 into y
Distribute
Subtract 480 from both sides
Now we use the quadratic formula to solve for x: