Mathematics
Isaias716
2016-04-30 17:32:12
Five Iranian weightlifters going to the olympics in Sydney have an average weight of 180 pounds. If the heaviest is 260 lbs, and none of the others is more than 185 each, what is the minimum weight of the fifth wrestler?
ANSWERS
oroosarah
2016-04-30 19:27:38

(260+3(185)+w)/5=180 multiply both sides by 5 260+555+w=900  combine like terms on left side 815+w=900 subtract 815 from both sides w=85 lbs That is one light weightlifter :) check... (260+3(185)+85)/5=180 (260+555+85)/5=180 900/5=180 180=180

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