Sarah competes in a long jump competition.
Her first jump is 4.25m.
Her best jump is 12% more than this.
However, her best jump is 15% lower than the winning jump.
Work out the length of the winning jump.
8 answers
0.85x = 4.25
4.25 + 0.12*4.25 = 4.76 m. = Her best.
4.76 + 0.15*4.76 = Winning jump.
4.76 + 0.15*4.76 = Winning jump.
23.66
4.25 as it is big
4.25 with 12% increase is 4.76 . 4.76 with 15% increase is 5.5 . That means the winning jump is 5.5
thanks Ms.sue
5.6
5.6 is the answer