Question11. At a gas station, all chips are marked down . A customer brings a bag of chips with a regular price of to the register. After the sales tax on the final price, how much does the customer pay for the bag of chips? Round your answer to the nearest cent.
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12. A number is decreased by , and the resulting number is then increased by . The original number is what percentage of the final number?
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Studdy Solution
Round the final price to the nearest cent:
The customer pays for the bag of chips.
_HIGH_LEVEL_APPROACH_ for Problem 12:
1. Define the original number.
2. Calculate the number after a decrease.
3. Calculate the number after a increase.
4. Determine the percentage of the original number relative to the final number.
STEP_1:
Let the original number be .
STEP_2:
Calculate the number after a decrease:
STEP_3:
Calculate the number after a increase:
STEP_4:
Determine the percentage of the original number relative to the final number:
The original number is of the final number.
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