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struggling on these two word problems

Guest Apr 22, 2020

#2**+2 **

Answer given above does not really help YOU learn how to solve it does it?....here is method:

Area of larger rectangle = (9+b) * a = 84

smaller rectangle = a*b = 21 so b = 21/a subst this into the first equation

(9+21/a)*a = 84

9a + 21 = 84

9a = 63

a = 7 since we arwe given a*b = 21 then b = 3

ElectricPavlov Apr 22, 2020