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kari74 [83]
2 years ago
14

Lily and Sabrina often make some extra pocket money by painting garden sheds. Lily can paint a shed in 5 hours working alone, wh

ereas Sabrina can paint it in 6 hours. they start together, but Lily had to leave after 2 hours to do her homework. how long did it take Sabrina to complete her painting that shed alone?
Please halppppppp in this question​
Mathematics
1 answer:
prisoha [69]2 years ago
3 0
Lily and sabring make extra pocket money by paint gradden shed lily can paint
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kondor19780726 [428]
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8 0
3 years ago
Suppose I make several time measurements, and compute an average time of 3.4 s, with a standard deviation of 0.8 s and an SDOM o
7nadin3 [17]

Answer:

The result will be smaller than 2.6s, 16% of the time.

Step-by-step explanation:

This is a normal distribution problem

The standardized score for any value is the value minus the mean then divided by the standard deviation.

z = (x - xbar)/σ

x = the random value = 2.6 s

xbar = mean = the average = 3.4 s

σ = standard deviation = 0.8 s

z = (2.6 - 3.4)/0.8 = - 1

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8 0
3 years ago
What is $15.60 to $11.70
worty [1.4K]

Answer:

25

Step-by-step explanation:

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7 0
3 years ago
What is the answer to -7(n+2)=-14-7n
Vladimir79 [104]
The answer is 1.
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-7(1 + 2) = -14 - 7
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3 0
3 years ago
What is 66% of 75?<br> A. <br> 25<br> B. <br> 33<br> C. <br> 40<br> D. <br> 49.5<br> E. <br> 66
tamaranim1 [39]

Answer:

D

heres a formula dont know if its right but 49.5 is the answer.

How to Calculate Percentage in Excel using Formula?

The excel formula for percentage is Portion Days / Total Days * 100.

Percentage of Days spent in USA = 5 / 15 * 100 = 33.33%

Percentage of Days spent in Home Town = 10 / 15 * 100 = 66.66%

3 0
3 years ago
Read 2 more answers
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