SOLUTION: Sue has a sock drawer where she collects nickels, dimes, and quarters. The total number of coins in her drawer is 37 with a total of $4.00. The number of dimes is 7 more than the n
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Question 823756: Sue has a sock drawer where she collects nickels, dimes, and quarters. The total number of coins in her drawer is 37 with a total of $4.00. The number of dimes is 7 more than the number of nickels. How many coins of each type does she have? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! ---
x + y + z = 37
5x + 10y + 25z = 400
y = x + 7
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put the system of linear equations into standard form
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x + y + z = 37
5x + 10y + 25z = 400
x - y = -7
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answer:
x= nickels = 12
y= dimes = 19
z= quarters = 6
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