High School Math : Setting up Expressions

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #1 :Setting Up Expressions

In April, the price of a t-shirt is. In May, the store increases the price by 50%, so that the new price is. Then in June, the store decreases the price by 50%, so that the t-shirt price is now. What is the ratio ofto?

Possible Answers:

Correct answer:

Explanation:

If the original price of the T-shirt is, increasing the price by 50% means that the new priceis 150% of, or.

If the price is then decreased by 50%, the new priceis 50% of

or

The ratio oftois then:

The's in the numerator and denominator cancel, leaving, or

.

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