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olga nikolaevna [1]
2 years ago
9

Mr. K was able to spot quite a few window washers on the skyscrapers there. He asked them how long it took to wash windows on su

ch a building. They said that each person could wash 50 windows in 1 hour.
(How long would it take the 3 workers to wash all 1000 windows on one of the skyscrapers?)
Mathematics
1 answer:
Anton [14]2 years ago
5 0

Answer:

6.7 hours

Step-by-step explanation:

If one can do 50 then three can do 150.

So 1000÷150=6.66666666666

Hope this helps

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9. The amount of money Allen earns varies directly with the amount of time he works. He earns
Ilia_Sergeevich [38]

Answer:

47.5

Step-by-step explanation:

19÷2=9.5x5=47.5

3 0
3 years ago
Sorry my brain is fried...
KiRa [710]

Answer:

1:D,2

2:B:She found that -3(9) is positive

3:D:Evaluated -2^2 as -4

4:Confused, is there supposed to be supplemental info?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Ryan owns 3/8 of a florist shop worth 76,000. what is value of ryan's share of the business ?
Roman55 [17]
To find 3/8 of 76,000, multiply the two numbers.

3/8*76000/1= 228000/8

228000/8= 28500

Final answer: $28,500
7 0
3 years ago
What is 4.2X-1.4Y=2.1-2X
enot [183]

4.2x - 1.4y = 2.1 - 2x

Subtract 4.2x

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Divide by -1.4

y = -3/2 + 9/2x

Answer: y = 9/2x - 3/2

7 0
3 years ago
Read 2 more answers
In 1993 eggs cost $0.87 a dozen. In 2003 it cost $1.56 a dozen. How much did the eggs appreciate (percent of increase)?
rusak2 [61]

Answer:

190%

Step-by-step explanation:

$1.56 is close to nearly 2x the value of $0.87

You can start by multiplying $0.87 by 2 to get $1.74

Now put $1.56 / $1.74

This gets you 0.89655172

By rounding this, you can get to 0.90

Move the decimal places two spots over to get a percentage = 90%

Since the eggs didn't decrease in value, you can add the 100% from the beginning of the problem.

100+90=190%

4 0
2 years ago
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