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
Butoxors [25]
3 years ago
8

John can complete a paper route in 20 minutes. Steve can complete the same route in 30 minutes. How long will it take them to co

mplete the route if they work together?
Mathematics
2 answers:
jek_recluse [69]3 years ago
6 0
12 minutes to complete the route together
wel3 years ago
6 0

John can complete a paper route in 20 minutes.

John's 1 minute work = 1/20 , so rate =1/20 job/minute

Steve can complete the same route in 30 minutes

Steve's 1 minute work =1/30, so rate =1/30 job/minute

Together DATA:

Time = y min/job ; Rate = 1/y job/min

rate + rate = together rate

1/20 + 1/30 = 1/y

(30+20)/600 = 1/y

50/600

5/60 = 1/y

y = 60/5 = 12 minutes (time for this to do the job together)

You might be interested in
48 divided by four fifths
Fed [463]

Answer:

The answer is 60.

Step-by-step explanation:

\frac{48}{1}÷\frac{4}{5}

Now, apply the fraction rule(\frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}):

\frac{48}{1}×\frac{5}{4}

Cross-cancel(common factor of 4):

\frac{12}{1}×\frac{5}{1}

Multiply:

\frac{12 x 5}{1 x 1}

Simplify:

12 x 5=60

The answer is 60

hope this helps :)

4 0
3 years ago
I need help solving this
Stolb23 [73]

Step-by-step explanation:

So in the equation given, y = 2x - 3

you substitute x for whats given in the table in the x column.

Example

In the graph the first number under the x colum is -1.

y = 2x - 3 in the equation you take out x and put -1.

So now the equation becomes y = 2 × -1 - 3.

Using bedmas to solve the question you should get -5

Which now means y = -5

To plot the point now x would be -1 and y would be -5 (-1, -5)

Same thing for the second number in the x Column.

y = 2 × 1 - 3 which equals -1

To plot it

x = 1 y = -1. (1, -1)

And for the last number 3.

Agai. You substitute x for 3 which makes the equation y = 2 × 3 - 3

this gives you 3 and to plot it

x would be 3 and y would be 3

4 0
3 years ago
The measure on angle 0 is 7pie/4. Measure of its reference angle is __ °, and the tan 0 is ___
soldier1979 [14.2K]

Answer:

Reference angle is \frac{\pi }{4} and tan\frac{7\pi }{4} = -1

Step-by-step explanation:

\frac{7\pi }{4} lies in the 4th quadrant

and reference angle for angle in 4th quadrant is 2π - x , where x is the angle given.


and reference angle for \frac{7\pi }{4} is  

2π-\frac{7\pi }{4} = \frac{\pi }{4}

and tan\frac{7\pi }{4} = -tan \frac{\pi }{4}=  -1

Since tan is negative in 4th quadrant ,therefore value will be  negative for the given angle.


7 0
3 years ago
Simplify the expression (k^2)^4
Andrews [41]
It would be K^{8}
7 0
3 years ago
Read 2 more answers
If you bought a cookie for $0.80 and paid for it with a $5 bill how much change would you receive
valentina_108 [34]
You would get $4.20 back
6 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me ?????!
    8·1 answer
  • The graph shows the types of watches at a jewelry counter.
    14·2 answers
  • a prism has a triangular base with an area of 3.7 square meters. if the height of the prism is 0.5 meters,what is the volume of
    13·2 answers
  • What action would you use to solve c-3=12
    14·1 answer
  • What is the answer and why is it the answer
    9·2 answers
  • Terri is buying some candy at the corner store. There, small candies cost 10 1 point cents each and large ones cost 25 cents eac
    7·1 answer
  • Teachers were told that next year they would receive a percent increase in their salary. Mrs. Bennett is making $32,000 a year a
    11·1 answer
  • Which point is not on the graph of the function y = x + 2?
    8·2 answers
  • Walker reads 72 pages of his favorite books in 3 hours. If he reads at a contestant rate, how many pages can he read in an hour?
    12·2 answers
  • Directions: Complete the task below.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!