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Temka [501]
3 years ago
5

One machine can complete a job in 10 minutes. If the same job is done by this machine and an older machine working together, the

job can be completed in 6 minutes. How long would it take the older machine to do the job alone?
Mathematics
1 answer:
nalin [4]3 years ago
7 0

Answer:

15 minutes

Step-by-step explanation:

The speed of the first machine is 1/10 job/minute.

The speed of the older machine is x.

Their combined speed is:

x + 1/10 = 1/6

Solving for x:

x = 1/6 − 1/10

x = 5/30 − 3/30

x = 2/30

x = 1/15

The speed of the older machine is 1/15 job/minute, so it takes 15 minutes for the older machine to do the job alone.

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Last year 12 records in his collection now he has 15 records what is his percent increase of his Collection
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Given that,

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Solution,

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3 0
3 years ago
2. One of the most common mutagens in
vodka [1.7K]

Answer:

Ultraviolet (UV) radiation.

Step-by-step explanation:

Mutagen is part of genetics, it is chemical or physical agent which are present in atmosphere and causes changes or mutation in the genetic materials i.e. in DNA (these changes can be permanent as well). Example of mutagen are radioactive substances, ultraviolet radiation, etc.

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6 0
3 years ago
You deposit $2,000 into a saving account that gains 7% interest each year. How long will it take for your balance to
Vinil7 [7]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
The triangles are similar. If QR = 9, QP = 6, and TU = 19, find TS. Round to the nearest tenth.
sineoko [7]
Answer=12.6

QR=9
QP=6
TU=19
TS=?

The triangles are similar, so the following equation can be made

   9         6
____=____
  19        x        

Cross multiply
9x=114
divide both sides by 9
x=12.6 (with the 6 repeating) or 12 2/3

TS=12.6
3 0
3 years ago
Read 2 more answers
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