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Avery jumped over 15 hurdles. If these hurdles are 60% of the hurdles in the race, how many hurdles are there in all?
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Oct 20, 2016
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Avery jumped over 15 hurdles. If these hurdles are 60% of the hurdles in the race, how many hurdles are there in all?
Mathematics
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Iameli
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40/100*15
cancel 100 and 15
40/20*3
120/20
6 hurdles is 40%
6+15=21 hurdles
there are 21 hurdles.
Nuno Rodrigues
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Oct 21, 2016
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Nuno Rodrigues
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You could set up a proportion to figure out the anwer. 15 hurdles/60%=X hurdles/100%. Cross multiply, 1500=60x. Divide by 60, 25=X=total amount of hurdles. Hope this helps!
Ruslangm
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Oct 26, 2016
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