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viva [34]
2 years ago
8

It takes Nate four hours to paint a wall, and it takes Jill seven hours to paint the same wall. About how many hours will it wil

l take if Nate and Jill work together to paint the wall?
Mathematics
2 answers:
Katyanochek1 [597]2 years ago
6 0
<span>Rate=1/time<span>
N=1/4 and J= 1/7
TotalN+J= \1/4 + 1/7 = 11/28

Then:
Time = 1/rate = 1/(11/28) = 28/11 hours = 2 6/11 hours= about 2.545 hours. </span></span>
weeeeeb [17]2 years ago
5 0
2.5 hours if my math is correct!

Hope this helps!!
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A circle has an area of 314.1592. What is the diameter? (round to the nearest whole number)
ad-work [718]

Answer:

20

Step-by-step explanation:

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We can then write this as

314.1592=π*r^2

We then divide pi to get

100=r^2

take the square root and you find that the radius equals around 10

The diameter is always equal to the radius times two which means that the diameter is 20

hope this helps

8 0
2 years ago
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Degger [83]

Answer:

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Step-by-step explanation:

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2 years ago
What does a 3 in front of a square root mean?
zlopas [31]
The 3 goes with the square root you don’t need to multiply or anything like that. If you need to simply for example 3 square root of 20 which is when 3 is outside the square root sign. The 20 will be separated with 4*5 in the square root and then you will square root the 4 leaving the 5 in and bringing 2 out. Now you can’t just bring it out and forget about the 3 outside you need to multiply that 2 and 3 and you get 6! So you final answer is 6 square root 5. Hope this helps reply if you have a question!
5 0
3 years ago
Read 2 more answers
How do you solve 216 - 202?? -explained-
Serhud [2]

Answer: 216 - 202 = 14

Step-by-step explanation:

It’s 14 because in my way, I separated the numbers, like this:

200 - 200 = 0

16 - 2 = 14

Since 0 is equal to nothing, the answer is 14.

6 0
2 years ago
ANSWER QUICK!!
netineya [11]

Answer: Divide 2 by 6- 0.3 with a bar over the 3,    Step-by-step explanation: 0.3 with a bar over the 3 is the decimal form of 2/6

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3 years ago
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