SOLUTION: Joe has a collection of nickels and dimes that is worth $9.6.If the the number of dimes was tripled and the number of nickles was decreased by 31 the value would be $6.70
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Question 369049: Joe has a collection of nickels and dimes that is worth $9.6.If the the number of dimes was tripled and the number of nickles was decreased by 31 the value would be $6.70 Answer by scott8148(6628) (Show Source):
You can put this solution on YOUR website! "Joe has a collection of nickels and dimes that is worth $9.6" ___ 5n + 10d = 960 ___ 5n = 960 - 10d
"If the the number of dimes was tripled and the number of nickles was decreased by 31 the value would be $6.70
___ 5(n - 31) + 10(3d) = 670 ___ 5n - 155 + 30d = 670
