Mathematics

Mathematics, 29.08.2019 02:30, jayqq4240

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

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