SOLUTION: Ginny's piggy bank contains $8.80 in quarters, dimes and nickels. There were 2 more than 5 times as many nickels as quarters and 4 less than twice as many dimes as quarters. How ma
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-> SOLUTION: Ginny's piggy bank contains $8.80 in quarters, dimes and nickels. There were 2 more than 5 times as many nickels as quarters and 4 less than twice as many dimes as quarters. How ma
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Question 820662: Ginny's piggy bank contains $8.80 in quarters, dimes and nickels. There were 2 more than 5 times as many nickels as quarters and 4 less than twice as many dimes as quarters. How many of each kind of coin was there in the bank? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! ---
5x + 10y + 25z = 880
x = 5z + 2
y = 2z - 4
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put the system of linear equations into standard form
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5x + 10y + 25z = 880
x - 5z = 2
y - 2z = -4
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copy and paste the above standard form linear equations in to this solver:
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x= 67
y= 22
z= 13
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answer:
nickels = 67
dimes = 22
quarter = 13
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