Goals/Misses=3/7 right? so we can set up a proportion; if she scores 24 goals it would go on top of the fraction to the left leaving an x in the bottom for misses 24/x=3/7 then you cross multiply getting 24(7)=3(x) so simplify 168=3x now divide both sides by 3
56=x She missed 56 goals at practice.