math
posted by Xio on .
a piece of rope 3m 66 m long was cut into 2 pieces. the longer piece was twice as long as the shorter piece. What was the length of the longer piece?

If 3m 66m mean 3 m 66 cm then:
3 m 66 cm = 3.66 m
L = Longer piece
S = Shorter piece
L = 2 S
L + S = 3.66 m
2 S + S = 3.66 m
3 S = 3.66 m Divide both sides by 3
S = 3.66 m / 3
S = 1.22 m = 1 m 22 cm
L = 2 S = 2 * 1.22 m = 2.44 m = 2 m 44 cm