PSLEJack had 3.3 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 p.
- If p = 27, how much of the streamer was not used to make the figure? Leave your answer in meters.
(a)
Total length of streamer used
= p + p + p + (3p - 4) + (p + 14)
= p + p + p + 3p + p - 4 + 14
= (7 p + 10) cm
(b)
1 m = 100 cm
3.3 m = 330 cm
Total length of streamer used if p = 27
= 7 p + 10
= 7(27) + 10
= 189 + 10
= 199 cm
Total length of streamer not used
= 330 - 199
= 131 cm
1 cm = 0.01 m
131 cm = 1.31 m
Answer(s): (a) (7p + 10) cm; (b) 1.31 m