1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mandarinka [93]
3 years ago
7

Working together, it takes 2 computers 12 minutes to send out emails. If it takes the slower 30 minutes to the job on its own, h

ow long it take the fast computers to do the job on its own
Mathematics
1 answer:
artcher [175]3 years ago
4 0

Answer:

The faster computer can do the job in 20 mins on it own.

Step-by-step explanation:

Given:

Time taken by slower computer to do job on its own =30 minutes.

Time taken by both the computers to do the job = 12 mins.

We need to find the Time taken by faster computer to do job on its own.

Solution:

Let the the Time taken by faster computer to do job on its own be 'x'.

Now we know that;

Rate to complete the job is equal to number of jobs divided by time taken to complete the job.

Rate of faster computer = \frac1x

Rate of slower computer = \frac{1}{30}

Rate of both the computers = \frac{1}{12}

Now we can say that;

Rate of both the computers is equal to sum of Rate of faster computer and Rate of slower computer.

framing in equation form we get;

\frac{1}{12}=\frac{1}{30}+\frac{1}{x}\\\\\frac{1}{x} = \frac{1}{12}-\frac{1}{30}

Now we will take the LCM to make the denominator common we get;

\frac{1}{x}=\frac{5}{12\times5}-\frac{2}{30\times2}\\\\\frac1x=\frac{5}{60}-\frac{2}{60}

Now denominator are same so we will solve the numerator.

\frac1x=\frac{5-2}{60}\\\\\frac1x=\frac{3}{60}\\\\\frac1x=\frac{1}{20}\\\\x=20\ mins

Hence The faster computer can do the job in 20 mins on it own.

You might be interested in
If the theory of purchasing power parity holds, how much does a pair of shoes made in Hong Kong cost in the United States if the
horsena [70]

The price of the shoe pair in us dollars will be $50. The correct option is C.

<h3>What is unit conversion?</h3>

Multiplication or division by a numerical factor, selection of the correct number of significant figures, and unit conversion are all steps in a multi-step procedure.

It is given that shoes sell for 400 Hong Kong dollars in Hong Kong and the exchange rate is $0.125 per Hong Kong dollar. The cost of the same shoes in the united states will be calculated as below:-

Cost of shoes in the US = Cost in Hongkong x Exchange rate

Cost of shoes in the US = 400 x 0.125

Cost of shoes in the US = $50

Therefore, the price of the shoe pair in us dollars will be $50. The correct option is C.

To know more about unit conversion follow

brainly.com/question/8426032

#SPJ1

6 0
2 years ago
It takes a boat 2 hours to travel 22 miles upstream against a current. If the speed of the boat in still water is 17 miles per h
lesya [120]

Answer: I think about 5 or 6

Step-by-step explanation:

4 0
3 years ago
HEL----PPPPpppppppppppppppppppppppppppppp
omeli [17]

Answer:

Step-by-step explanation:

First order from smallest to largest.

70.8, 71.9, 72.1, 82.4, 85.3, 98.1.

Median is the middle number/s.

72.1+82.4/2 so The median is 77.25

Range is the largest number minus the smallest number.

85.3-70.8=14.5

Mode is the most repeated number.

Since there are no repeated numbers there is no mode.

Second question:

Again rearrage: 6, 9, 11, 14, 17

In order to make the median 10 you would have to add another 9 becasue

11+9/2 = 10

Third: remove 6 to make 12 the middle number

Fourth: add all numbers 90+x/6=20 so x has to be 30

8 0
3 years ago
Read 2 more answers
Select the correct solution for the expression.<br><br> 2/5+3/8
igor_vitrenko [27]
Answer: 31/41

Explanation: You multiply the numerator and denominator across such as (2 and 8)= 16 and (3 and 5)= 15.

Once that done, you just calculate it together to get

=31/40
6 0
2 years ago
PLEASE HELP ME!!! ANSWER BOTH QUESTIONS &amp; I WILL MARK BRAINLIEST!!!
Nataly [62]
1)b
2)a
Let me know if u want me to show my work
5 0
3 years ago
Other questions:
  • Can somebody help me with a math question??
    14·1 answer
  • The cost of a pack of chewing gum in a vending machine is $0.75.The cost of a bottle of juice in the same machine is $1.25.Julia
    6·2 answers
  • Help me please on this math
    14·1 answer
  • Find the number of permutations of the first eight letters of the alphabet taking four letters at a time.
    9·1 answer
  • How do solve y=5x-8 y=-6x+3 by elimination
    14·2 answers
  • Filter A is cleaned immediately after it has
    6·1 answer
  • Question is number 1 part a​
    7·1 answer
  • Use the Mean Value Theorem to establish the fact that, for x&gt;0,ex&gt;1+x . (DO NOT use any other method).
    14·1 answer
  • Given the following rectangle and circle, what appropriate value of x are the two areas equal? A: x= 3.4 B: x=5.8 C: x= 10.2 D:
    12·1 answer
  • a car travels along the highway to little rock a steady speed. when it begins it is 280 miles after 4 hours it 100
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!