SOLUTION: The length of the cover of a road atlas is 4 in. more then the width. The area is 165 in.^2. Find the dimensions of the cover answer 15 inch. by 11 in. need a full break down o

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Question 193373: The length of the cover of a road atlas is 4 in. more then the width. The area is 165 in.^2. Find the dimensions of the cover
answer 15 inch. by 11 in. need a full break down of how the answer came about
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Let x represent the width of the cover. Then x + 4 represents the length of the cover. The area is then the length times the width, using the fairly reasonable presumption that the shape of the cover is a rectangle.





Factor and solve the quadratic. Exclude the negative root because you are looking for a positive measure of length.

John