Meli25idn
Answered

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PLEASE HELP ME!!!!!!!!!!!

A rectangular hole 4 cm wide and x cm long is cut in a rectangular sheet of metal 9 cm wide and y cm long. The length of the hole is 8 cm less than the length of the metal sheet. After the hole is cut, the area of the remaining metal is 76 cm2 .

a.) Find the length of the hole. Answer in units of cm

b.) Find the length of the metal sheet. Answer in units of cm

Sagot :

from the first 2 statements again , x + 8 = y.

area of the hole would be 4x  cm^2
area of sheet without hole is 9y cm^2

9y - 4x =76   ------------- eqn one

y = x + 8 ----------------eqn two

subs eqn two into one and u got it 

btw what questions are these :o

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