Question

a rocket is divided into three sections. the top section is one-eighth the length of the bottom section. the middle section is one-half the length of the bottom section. the total length of the rocket is 208ft. find the length of the top section.

Answer 1

bottom=128 top=16(128/8) middle=64(128/2)

128+16+64= 208

b=bottom section

1/8b +8/8b +1/2 b=208

13/8 b=208

multiply both sides by 8/13(opposite of 13/8)

b=128