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ashleyb
on a farm there are three kinds of animals: pigs, cows and horses. 25% are pigs and 40% are cow. if there are 20 pigs how many horses are there?
if 20 are pigs and 25% are pig then the total number of animals is 20*4 = 80 so 40% of 80 is 32.
why did you times the 20 by 4?
think about how 4 parts of 25% (or 1/4) make up the whole so 4 *25% = 100% in this case the value of 25% is 20 pigs to find out how many farm animals there are total you have to multiply the value you know (20 pigs) by 4 --> meaning there are 80 animals on the farm from there you find out how many horses there are
ok i get it...so there are 32 cows on the farm
so there are 48 horses?
well if there are 80 total animals and we know 20 are pig and 32 are cows you just have to set up 80-(20 +32) = # of horses