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Big Ideas Math: Modeling Real Life, Grade 6 View details

Practice Test

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Exercise 9 Page 156

Use the conversion factor that 1 week is equal to 168 hours.

1680

Let's start by writing the given statement. 10gal/h&=gal/wkConverting between hours (h) and weeks (wk) will involve using a conversion factor. 168h/1wk Multiplying 10gal/h by this conversion factor will convert it to gallons per week.

10gal/h * 168h/1wk

MultFrac

Multiply fractions

10 gal* 168 h/h* 1wk

CrossCommonFac

Cross out common factors

10 gal* 168 h/h* 1wk

SimpQuot

Simplify quotient

10gal* 168/1wk

Multiply

1680gal/1wk