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lesantik [10]
2 years ago
11

You practice piano for 50 minutes each weekday and for 40 minutes on each weekend day. how many hours per week do you practice?

Mathematics
2 answers:
Sunny_sXe [5.5K]2 years ago
8 0

Answer:

five and a half hours.

Step-by-step explanation:

50 minutes x 5 days = 250 minutes

40 minutes x 2 days = 80 minutes

250 +80 = 330 minutes

330 minutes/60 minutes in an hour =5.5

answer is 5:30 hrs

Pavel [41]2 years ago
5 0

Answer:

330 minutes a week

Step-by-step explanation:

50 x 5= 250 then add 80 because 40 x 2 is 80 and get 330

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2 years ago
The Copy Shop has made 20 copies of a document for you. Since the defective rate is 0.1, you think there may be some defective c
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Answer:

Binomial

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Step-by-step explanation:

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Binomial probability distribution:

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And p is the probability of X happening.

In this problem

Of the 20 copies, 2 are defective, so p = \frac{2}{20} = 0.1.

What is the probability that you will encounter neither of the defective copies among the 10 you examine?

This is P(X = 0) when n = 10.

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8 0
3 years ago
"Quadrilateral ABCD underwent a sequence of transformations to give quadrilateral A′B′C′D′. Which transformations could have tak
suter [353]
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6 0
3 years ago
Read 2 more answers
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