Joelle used
29 of the streamer to tie some presents. She threw away
411 of the remaining streamer. As a result, she had 539 cm of the streamer left. How much streamer did Joelle have at first? Give your answer in cm.
Fraction of the streamer left after tying some presents
= 1 -
29=
79 Fraction of the remaining streamer left after throwing away
= 1 -
411=
711
Fraction of the total streamer left
=
79 ×
711=
4999
Length of the streamer at first = 99 u
Length of the streamer left = 49 u
49 u = 539
1 u = 539 ÷ 49 = 11
Length of the streamer at first
= 99 u
= 99 x 11
= 1089 cm
Answer(s): 1089 cm