PSLEPierre had 2.6 m of streamer. He used some of it to make the figure as shown.
- How much of the streamer did Andy use to make the figure? Leave your answer in the simplest form in terms of m.
- If m = 14, how much of the streamer was not used to make the figure? Leave your answer in meters.
(a)
Total length of streamer used
= m + m + m + (2m - 4) + (m + 13)
= m + m + m + 2m + m - 4 + 13
= (6 m + 9) cm
(b)
1 m = 100 cm
2.6 m = 260 cm
Total length of streamer used if m = 14
= 6 m + 9
= 6(14) + 9
= 84 + 9
= 93 cm
Total length of streamer not used
= 260 - 93
= 167 cm
1 cm = 0.01 m
167 cm = 1.67 m
Answer(s): (a) (6m + 9) cm; (b) 1.67 m