David bought a piece of streamer and cut it into 3 pieces. The third piece was 2.1 m longer than the second piece. The first piece was 1.26 m shorter than the third piece.
- If the second piece was 12.57 m, find the length of the streamer before it was cut.
- How much did David pay if each metre of the streamer was $2?
(a)
Length of the third piece of streamer
= 12.57 + 2.1
= 14.67 m
Length of the first piece of streamer
= 14.67 - 1.26
= 13.41 m
Length of the streamer
= 12.57 + 14.67 + 13.41
= 40.65 m
(b)
Amount that David paid
= 40.65 x 2
= $81.30
Answer(s): (a) 40.65 m; (b) $81.30