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Marcus is building a rectangular box for his kitten to sleep in. he wants the area of the bottom of the box to be 360 square inches and the length of one side to be 1 3/5 the length of the other side. what should the dimensions of the bottom of the bed be

Respuesta :

Joshtray
1 3/5 = 8/5
Let the length of the first side be l
Let the length of the second side be b
l = 8b/5    ------1
l*b = 360    ------2

Replace l with 8b/5

(8b^2)/5 = 360
8b^2 = 360*5
b^2 = (360*5)/8
b^2 = 225
b = 15 inches

 If b = 15, l = 8b/5 = (8*15)/5 = 24 inches


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