PSLEFabian had 2.3 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 h.
- If h = 15, how much of the streamer was not used to make the figure? Leave your answer in meters.
(a)
Total length of streamer used
= h + h + h + (2h - 6) + (h + 11)
= h + h + h + 2h + h - 6 + 11
= (6 h + 5) cm
(b)
1 m = 100 cm
2.3 m = 230 cm
Total length of streamer used if h = 15
= 6 h + 5
= 6(15) + 5
= 90 + 5
= 95 cm
Total length of streamer not used
= 230 - 95
= 135 cm
1 cm = 0.01 m
135 cm = 1.35 m
Answer(s): (a) (6h + 5) cm; (b) 1.35 m