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Chau made $288 for 18 hours of work. At the same rate, how many hours would he have to work to make $128 ?

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Final answer:

Chau would need to work 8 hours to earn $128 at the same hourly wage of $16 per hour.

Step-by-step explanation:

To calculate how many hours Chau needs to work to make $128 at the same rate of pay, we can set up a proportion using the information given about earnings and hours worked. Chau earned $288 for 18 hours of work, so we can find the hourly wage by dividing the total earnings by the hours worked.

The hourly wage is $288 ÷ 18 hours = $16 per hour. Now, to find out how many hours Chau would have to work to make $128 at this hourly wage, we set up the equation:

$16 per hour × number of hours = $128

Solving for the number of hours gives us:

number of hours = $128 ÷ $16 per hour = 8 hours

Therefore, Chau would need to work 8 hours to earn $128 at the same rate.

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