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anonymous
 one year ago
A village fair offers three throws for $1 and seven throws for $2. If with 187 throws $57 is made, how many people bought three throws
anonymous
 one year ago
A village fair offers three throws for $1 and seven throws for $2. If with 187 throws $57 is made, how many people bought three throws

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0we need a variable for either the $1 throws or the $2 throws so we can solve this for one of them which one do you pick and what variable?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you want to use two variables that is find also unnecessary but fine

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok that was wrong how can 187 throws bring in only $57?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oooh i got that totally wrong doh sorry

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if you only use one variable how would that turn out

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lets see if we can do it this way first

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the total is 187 so \[x+y=187\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and also \[\frac{x}{3}+\frac{2y}{7}=57\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you can solve that for \(x\) and \(y\) probably easier to multiply the second equation by 21 and start with \[x+y=87\\ 7x+6y=1179\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i get \(x=657\) but that is the number of throw, not the number of people the number of people would be one third of that, since they got three throws each

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it says the number of people is suppose to be 25

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0really? guess i screwed that one up

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0let me see if i can unscrew it if x is the number of people with 3 throws and y with 7 then maybe we should have \[3x+7y=187\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and also \[x+2y=57\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0seems to work nicely, get \(x=25,y=16\)
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