o + f = 15 -----> o = 15 - f
o + 5f = 51 ------> o = 51 - 5f
15 - f = 51 - 5f
4f = 36
f = 9
o = 15 - 9
o = 6
He has 6 ones and 9 fives.
Sh S.
asked • 09/26/18A student has some $1 bills and $5 bills in his wallet. He has a total of 15 bills that are worth $51. How much of each type of bill does he have
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A student has some $1 bills and $5 bills in his wallet. He has a total of 15 bills that are worth $51. How much of each type of bill does he have?
A student has some $1 bills and $5 bills in his wallet. He has a total of 15 bills that are worth $51. How much of each type of bill does he have?
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