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Umnica [9.8K]
3 years ago
12

A group of 5 painters takes 21 hours to paint a house. How long would it take a group of 7 painters to paint the same house?

Mathematics
2 answers:
VladimirAG [237]3 years ago
5 0

Answer:

29.4

Step-by-step explanation:

if 5  painters takes 21 hours that makes it 4.5 per person so multiply that by 7 and there you go!

lord [1]3 years ago
5 0

Answer:

15

hope it helps

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s344n2d4d5 [400]
First convert -5/6(b+1) to -5/6b-5/6 which looks like:
1/3b+2/3b-5/6b-5/6
second add 1/3b+2/3b=3/3b, convert to 6/6b so:
6/6b-5/6b-5/6
subtract 6/6b-5/6b = 1/6b so:
1/6b-5/6 is the answer
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Of the employees who work at Stalling Printing, 90% attended the safety procedures meeting. If 63 employees attended the meeting
LUCKY_DIMON [66]
There are 70 employees who work at Stalling Printing.

Take note that the 63 employees who attended the meeting represents 90% of the total number of employees working at Stalling Printing. To get the total number of employees or the 100% number of employees, divide 63 by its percentage, 90%.

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4 0
3 years ago
This is confusing<br> (2x+y)^2−(x−2y)^2
Iteru [2.4K]

Answer:

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{(2x)}^{2}  + 2(2x)(y) +  {(y)}^{2}  -  {(x)}^{2}  - 2(x)(2y) +  {(2y)}^{2}

{4x}^{2}  + 4xy +  {y}^{2}  -  {x}^{2}  - 4xy +  {4y}^{2}

{4x}^{2}   -  {x}^{2}  +  {4y}^{2}  +  {y}^{2}

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5 0
3 years ago
Read 2 more answers
If 9m=5n then m/n=?
Anettt [7]

Step-by-step explanation:

9m = 5n

\frac{m}{n}  =  \frac{5}{9}

7 0
3 years ago
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