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Jessica is custodian at Oracle arena. She waxes 20m^2 of floor in 3/5 of an hour. Jessica waxed the floor at a constant rate? at this rate how many square meters can she was per hour?

Sagot :

1) Gathering the data

Jessica waxes 20 m² 3/5 hour

x 1 hour

2) Since this question wants the unit rate, and considering that Jessica is at a constant rate we can use a proportion to find that.

20 m² 3/5 hour

x 1 hour

This is the same as:

[tex]\begin{gathered} \frac{20}{x}=\frac{\frac{3}{5}}{1} \\ \frac{3}{5}x\text{ =20 } \\ 3x=100\text{ } \\ x=33.33\text{ m} \end{gathered}[/tex]

3) So Jessica can wax approximately 33.3 m² per hour

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