The area of a rectangle is 20 square inches. The length of the rectangle is 1 inch longer than the width. What are the length and width of the rectangle?

7 answers

width -- x
length -- x+1

x(x+1) = 20
x^2 + x - 20 = 0
(x+5)(x-4) = 0
x = 4 or a silly answer of x = -5

width is 4, length is 5
Janice plans to build a rectangular table top with an area of 60+20r square inches. The width of the table top is 10 inches as shown in the following diagram.
it is 3.7in
I'm sorry, but I don't see any diagram or further information regarding a rectangular table top. Could you please provide more details or a diagram?
3i+2i−7=18
How many solutions does this equation have?
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