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Write a system of equations for the following situation.
Sharon has some $1 bills and some $5 bills. She has 14 bills which total to a value of $30.
 one year ago
 one year ago
Write a system of equations for the following situation. Sharon has some $1 bills and some $5 bills. She has 14 bills which total to a value of $30.
 one year ago
 one year ago

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KuoministersBest ResponseYou've already chosen the best response.1
let $1 = x and $5 = y ok? so 1x + 5y = 30 now that is one equation
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
any idea what the 2nd one is?
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
now we use a method to find x and y? which do you like ^^ elimination? substitution?
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
awsome (so much easier) x + 5y = 30 x + y = 14 we subtract x from x vertically. 4y = 16
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
now i hope you can figure it out. once you find y sub y into the equation
 one year ago

mitchelsewbaranBest ResponseYou've already chosen the best response.0
isnt that for the substitution method?
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
we use the elimination then we sub y into the equation
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
if we did substitution we would make y the subject then get y THEN we would sub y into equation to get x
 one year ago

mitchelsewbaranBest ResponseYou've already chosen the best response.0
which equation should i plug the 4 in for y?
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
x + y = 14 would just be easier though
 one year ago

mitchelsewbaranBest ResponseYou've already chosen the best response.0
ok ill go for that. I got 10 for x
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
good so we can conclude x = 10 and y = 4
 one year ago

mitchelsewbaranBest ResponseYou've already chosen the best response.0
srry i didn't get the 2nd equation when u asked :(
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
mhm what equation?
 one year ago

KuoministersBest ResponseYou've already chosen the best response.1
well there is some $1 and $5 bills yea... and they add to 14. we said that $1 is x and $5 is y. so x + y is equal to 14.
 one year ago
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