math
posted by toni on .
an aquarium holding african cichlids is 2 inches higher than it is wide. Its length is 29 inches and its volumne is 3480 cubic inches. what is the height and width inches.

length  29
width  x
height x+2
29x(x+2) = 3480
divide by 29 and expand
x^2 + 2x = 120
x^2 + 2x  120 = 0
(x+12)(x10) = 0
x = 10 or x is a negative, which can't be
the width is 10 inches
the height is 12 inches
check: 10(12)(29) = 3480 
An aquarium holding african cichlids is 3inches higher than it is wide.Its length is 28inches,volume is 3640?