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frozen [14]
3 years ago
9

5. A violinist practices one hour a day from Monday through Friday. How many hours must she practice on Saturday

Mathematics
2 answers:
Scilla [17]3 years ago
6 0

Answer:

must practice 7 hours on Saturday

Step-by-step explanation:

Let 'x' = number of hours on Saturday

(5 (hours) + x) / 6 (days) = 2

\frac{5+x}{6} = \frac{2}{1}

Cross-multiply to get 5 + x = 12

MArishka [77]3 years ago
5 0

Answer:

7 hours

Step-by-step explanation:

First find the total number of hours she practices based on the average of 2 hours a day for six days.

This means 6*2 = 12 , she practices a total of 12 hours.

Next find the total hours she already practiced. She practices 1 hour a day from Mon to Fri, which is 5 days, so 1*5 = 5 hours. This is the hours she practiced already.

To meet the mean, she needs to practice 12-5 = 7 hours more on Saturday.

please give thanks by clicking the red button :)

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