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Goryan [66]
3 years ago
9

A robot can complete 8 tasks in 5/6 hour.

Mathematics
1 answer:
Over [174]3 years ago
7 0
Given:
8 tasks
5/6 hours total

Unit rate per task:

5/6 hours ÷ 8 tasks = 5/6 * 1/8 = 5/48 or 0.10 hours per task

0.10 hours x 60 minutes/hour = 6 minutes per task.

Unit rate per hour:

8 tasks ÷ 5/6 hours = 8 * 6/5 = 48/5 = 9.60 tasks per hour or rounded to 10 tasks per hour.
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Why u ask me jk hold on
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How much salt should Ilya add to 810g of water to make 10% solution? How much solution will he make? Ilya should add __g of salt
Burka [1]

Answer:

90 g of water should be added and he will make 900 g of solution.

Step-by-step explanation:

Let x g be the amount of salt Ilya add to 810g of water to make 10% solution. Then 810+x g is the amount of new solution. Thus,

810+x - 100%,

x - 10%.

Mathematically,

\dfrac{810+x}{x}=\dfrac{100}{10},\\ \\10(810+x)=100x,\\ \\8100+10x=100x,\\ \\100x-10x=8100,\\ \\90x=8100,\\ \\x=\dfrac{8100}{90}=90\ g.

So 90 g of water should be added and he will make 810+90=900 g of solution.

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3 years ago
Determine the domain of {(1,-2), (-2,0), (-1,2), (1,3)}
I am Lyosha [343]

Answer:

{-2, -1, 1}

Step-by-step explanation:

Domain is a list of x values

=

{-2, -1, 1}

3 0
3 years ago
What’s a 1/3 as a whole number
Marina CMI [18]

Answer:

a repeating term of .3

Step-by-step explanation:

1/3 = 1 divided by 3

1 divided by 3 = .33333333333333333333

that is called a repeating term

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8 0
2 years ago
Read 2 more answers
Aline crosses the coordinates (-4,4) and (2.-5). What is the slope<br> of the line?
lisabon 2012 [21]

Answer:

Step-by-step explanation:

Use the slope formula:

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where m = slope

Given the coordinates

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(2, -5) ---> this means x2 = 2 , y2 = -5

Substitute these values into the slope formula:

m = \frac{y2 -y1}{x2 - x1}

m = \frac{-5 -4}{2 - (-4)}  = \frac{-9}{2+4} = \frac{-9}{6} = \frac{-3}{2}

4 0
3 years ago
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