GED® Basic Math: Rates & Unit Rates Mastery › 6. Wages, Pay, Commission, and Work Rates
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6. Wages, Pay, Commission, and Work Rates

GED® Basic Math: Rates & Unit Rates Mastery · preview lesson

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Money rates often use dollars per hour, dollars per item, or percent commission. For hourly wages:
\[ \text{total pay}=\text{hourly rate}\times\text{hours}. \]

Example: A worker earns 14 dollars per hour for 22 hours.
\[ 14(22)=308\text{ dollars}. \]

If total pay and hours are known, divide to find hourly rate:
\[ \frac{96\text{ dollars}}{8\text{ hours}}=12\text{ dollars per hour}. \]

Work rate measures output per time: pages per hour, forms per day, lawns per week.

Work Rate: Output per Time Ava Ben 24 pages in 3 hr = 8 pages/hr 20 pages in 4 hr = 5 pages/hr Divide output by time to compare fairly.
Work rates compare output per time, not just total output.

Case study - two workers: Ava types 8 pages per hour. Ben types 5 pages per hour. Together, if they can work independently on different pages, their combined rate is
\[ 8+5=13\text{ pages per hour}. \]
In 3 hours, they type \(13(3)=39\) pages.

Common mistake: comparing total output without time. Typing 24 pages sounds better than 20 pages, but 24 pages in 6 hours is slower than 20 pages in 2 hours.

Quick Check

A worker earns 96 dollars for 8 hours. What is the hourly rate?

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