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kirill115 [55]
4 years ago
10

Two printers working together can complete a job in 6 hours. Working alone, one

Mathematics
1 answer:
timama [110]4 years ago
6 0

Answer:

Press A takes 10 hours to do a certain job. So Press A does (1/10)th of the job in an hour.

Press A and Press B, together do (1/2.5) or (4/10)th of the job in an hour.

So Press B does (4/10)-(1/10) = (3/10)th of the job in an hour. So Press B can do the job in (10/3) hours or 3 hour and 20 mins.

Check: A does (1/10)th and B does (3/10)th part of the job in an hour. A and B together will take (1/10)+(3/10) = 4/10th of the job in an hour. So they will complete the job in 10/4 = 2.5 hours. Correct.

Answer: Press B can do the job in 3 hour and 20 mins.

Step-by-step explanation:

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Solve 20x + 5y= for y
Mama L [17]

Answer:

<h2>y = -4x</h2>

Step-by-step explanation:

Solve 20x + 5y =  for y

20x + 5y = 0

subtract 20x both sides

5y = -20x

simplify:

y = <u>-20x</u>

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finally

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3 0
4 years ago
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(3x +20)
Rashid [163]

Answer:

x = 20°

Step-by-step explanation:

The angle opposite to 3x + 20 is also 3x + 20     (opposite interior angles)

The angle opposite to 5x is also 5x                      (opposite interior angles)

Solve:

Set up the equation by adding all the angles. The sum of these angles should equal 360.

  • (3x + 20) + (3x + 20) + (5x) + (5x) = 360
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-Chetan K

4 0
2 years ago
Y=2.3x is this linear?
padilas [110]

Because it is being increased by 2.3 every time.

5 0
4 years ago
The sum of 3 times a number and 5 is 26. The statement is written as the equation
Sophie [7]

Answer:

I don’t know much about the second part but the number 3 is being multiplied by is 7. 3x7=21, and than you add 5 giving you 26. Ohhhh now I see the equation is 3 times x+5=26.

Step-by-step explanation:

Hope this helps.

3 0
4 years ago
Read 2 more answers
Aswer: 5x - 2 = 3x + 4
GrogVix [38]

Answer:

x = 3

Step-by-step explanation:

5x - 2 = 3x + 4

2x = 6

x = 3

5 0
3 years ago
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