The total length of 7 streamers and 4 threads is 273 cm. The length of a thread is
15 of the length of the streamer. What is the total length of the 4 threads?
| |
Streamers |
Threads |
Total |
| Number |
7 |
4 |
|
| Value |
5 u |
1 u |
|
| Total value |
35 u |
4 u |
39 u |
Length of 7 streamers and 4 threads
= 35 u + 4 u
= 39 u
39 u = 273
1 u = 273 ÷ 39 = 7
Total length of the 4 threads
= 4 u
= 4 x 7
= 28 cm
Answer(s): 28 cm
