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Mathematics
Proportions
Solving for x
A piano tuner charges $63 for 1.5 hours of work. Which proportion can be used to find x, the number of dollars the piano tuner charges for 4 hours of work?
1 answer
We can set up a proportion using the ratio of the number of hours worked and the amount charged. The proportion is $\frac{x}{4} = \frac{63}{1.5}$.
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