SOLUTION: Please show work and explain: The price of a half-gallon of ice cream plus 5% tax is $3.15. What is the original price of the ice cream?

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Question 4640: Please show work and explain:
The price of a half-gallon of ice cream plus 5% tax is $3.15. What is the original price of the ice cream?
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = cost of the ice cream.
.05x = tax on the ice cream.

Total cost = cost of ice cream + tax = $3.15
x + .05x = $3.15
1.05x = 3.15

Divide each side by 1.05:
%281.05x%29%2F1.05+=+3.15%2F1.05+
x= $3.00 even!

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