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kirill115 [55]
3 years ago
10

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

Mathematics
1 answer:
timama [110]3 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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Step-by-step explanation:

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7 0
3 years ago
Given the diagram shown below which of the following best represents the distance from the school to the library?
Amanda [17]
To answer this question, we will use the sine law which is illustrated in the attached image.

We are given that:
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∠A = 32
∠B = 110
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Substitute with the givens in the relation of the sine law to get a as follows:
(sin 32) / (a) = (sin 110) / (2.2)
a = (2.2 sin 32) / (sin 110)
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Based on the above calculations, the best choice would be:
B. 1.2 mi

4 0
3 years ago
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Step-by-step explanation:

4 0
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Step-by-step explanation:

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