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michelle230
07.10.2020 •
Mathematics
Sarah plans to spend more than 20 hours painting this week. She paints for the same number of hours every weekday (Monday through Friday), and an additional 5 hours on the weekend. Describe the number line you would use to show the possible number of hours that Sarah paints every weekday.
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Ответ:
Step-by-step explanation:
Given the following :
Number of hours Sarah intends to spend painting > 20 hours
Let number of hours spent Painting on weekdays = x
Number of hours spent painting on weekends = x + 5
Possible number of hours spent painting every weekday:
weekdays = 5
Weekend = 2
5 * x + (2 * (x+5)) > 20
5x + (2x + 10) > 20
7x + 10 > 20
7x > 20 - 10
7x > 10
x > 10/7
x > 1.428
Hence, Sarah intends to piant for more than 1.43 hours every weekday.
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