SOLUTION: a poster is designed so that its length will always be 4 inches more than its height. The height is x inches. The area of the poster (length times height) is y square inches. Write

Question 885562: a poster is designed so that its length will always be 4 inches more than its height. The height is x inches. The area of the poster (length times height) is y square inches. Write an equation that best describes the word problem above
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Assign variables to everything you can unless already assigned in the description and write the numeric facts that the description indicates.

x = height
y = area
u = length (could be any other variable not yet assigned)
-
u=4+x

The description can give you a relationship for all of these using formula for area: ;

Area, , or , or if you want to solve the length equation for x, you can show y as a function of u.
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