Question

phillip has a part-time job and saves $5 of his hourly pay for the purchase of a new laptop that costs $735. he has saved $90 already. which inequality represents the number of hours, x, phillip must work to buy the laptop?

Answer 1

The inequality that represents the number of hours Philip must work to buy the laptop is 5x + 90 ≥ 735

Inequality is a term used in mathematics that can be described as the relation which makes an unequal comparison between two mathematical expressions.

As he saves $5 of his hourly pay, considering x to be the number of hours the inequality for this case can be given as;

5x + 90 ≥ 735

The '≥' sign indicates that this amount should be equal to or greater than 735 so that he can purchase the laptop.

Solving for x;

5x ≥ 735 - 90

5x ≥ 645

x ≥ 645 / 5

x ≥ 129

Therefore he has to work for at least 129 hours to purchase the laptop.

To learn more about inequality; click here:

brainly.com/question/24372553

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