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Andru [333]
3 years ago
9

Select the correct answer

Mathematics
1 answer:
Irina18 [472]3 years ago
4 0

Answer:

7 minutes

Step-by-step explanation:

When Jay and Kevin work together to clear the driveway of snow it takes an average of 14 minutes. If Jay or Kevin works alone to clear the driveway he can clean it in 21 minutes. In total if Jay works alone then he can clean the driveway by spending additional 7 minutes.

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the probability that a particular song is played is 76%. What is the probability that this song will be played on exactly 2 days
guapka [62]

Answer:

0.0287

Step-by-step explanation:

Using the binomial probability relation :

p = 0.76

q = 1 - p = 1 - 0.76 = 0.24

P(x = x) = nCx * p^x * q^(n-x)

P(x = 2) = 6C2 * 0.76^2 * 0.24^4

P(x = 2) = 15 * 0.76^2 * 0.24^4

P(x = 2) = 0.02874507264

P(x = 2) = 0.0287

7 0
3 years ago
If you run 3 miles per day, how many total miles would you run in x days?
Vladimir [108]

Answer:

3x

Step-by-step explanation:

The answer is 3 times x.

Because we do not know how much days you are running for, replace the it with x.

x = the number of days you have ran.

Hopes this helps you.

7 0
3 years ago
What is the product of (y + 3) and (7y – 1)?
Lorico [155]

Answer: =7y^2+20y−3

Step-by-step explanation:

4 0
2 years ago
8/3 X 7/10 X 6/1 plz help me
Harlamova29_29 [7]

Answer:

are you mutiplying?

Step-by-step explanation:

5 0
2 years ago
Lauren went to a store to buy some clothes. The shirts were selling at a 20% discount. A pair of pants cost $5 less than 3 times
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F is the right answer
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3 years ago
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