SOLUTION: I am trying to help a kid figure out how to answer a question that says the total bill was $300 after having 25% off.

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Question 216929: I am trying to help a kid figure out how to answer a question that says the total bill was $300 after having 25% off.
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Let P = the price before the 25% discount. Change the percentage to its decimal equivalent (25% = 0.25):
P-0.25P+=+300
P%281-0.25%29+=+300
P%280.75%29+=+300 Divide both sides by 0.75
P+=+300%2F0.75
P+=+400
The price before the 25% discount was $400.00