# Math

Beth got a job painting dorm rooms at her college. At top speed, she could paint 5 identical rooms during one 6-hour shift. How long did she take to paint each room?

A. 50 minutes
B. 1 hour and 10 minutes
C. 1 hour and 12 minutes
D. 1 hour and 15 minutes
E. 1 hour and 20 minutes

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1. (6 * 60) / 5 = __________ minutes

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👤
Ms. Sue
2. 72 minutes

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3. 1 hour = 60 minutes,
so 72 minutes is 1 hour and 12 minutes

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4. >>She could paint 5 identical rooms during one 6-hour shift.<<

So her painting rate was 5 rooms per 6 hours or (5 rooms)/(6 hours) or (5/6)room/hour

How long did she take to paint each room?

Let the length of time in hours be x

Accomplishment = (Rate)(Time)

Since it asks for "each" room, that means each accomplishment of 1 room,
so we substitute 1 for her accomplishment, 5/6 for her rate, and
x for her time:

1 = (5/6)x

Multiply both sides by 6

6 = 5x

Divide both sides by 5.

6/5 = x

Answer: 6/5 hours or 1 1/5 hours or
1 hour 12 minutes.

Edwin

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5. Thank you very much Edwin

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