Hearts6429 Hearts6429

16-03-2021
Mathematics

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A rectangle has an area of 40 square units. The width of the rectangle is (n+3) and the height is n. Find the value of n.

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sibongile98 sibongile98

16-03-2021

Answer:

(n+3) × n =40

n^2 + 3n =40

n^2 + 3n - 40=0

(n+8)(n-5)=0

n=-8 or n=5

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