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
Mashcka [7]
1 year ago
11

A and b together can do a piece of work in 8 days. If a alone can do the same work in 12 days, then b alone can do the same work

in?.
Mathematics
1 answer:
Nostrana [21]1 year ago
6 0

B can finish the job alone in 24 days.

In work-rate problems, a certain person can complete a fraction of the job for a specific timeframe. As stated in the problem, A and B can finish the job by working together for 8 days. It must be noted that the fraction of the job they can finish individually per day is additive.

\frac{1}{A} + \frac{1}{B} = \frac{1}{8}

A can complete the work in 12 days and finish 1/12 fraction of a job per day. This can be substituted directly to the equation to solve for the time B needed to finish the work.

\frac{1}{12} + \frac{1}{B} = \frac{1}{8}

\frac{1}{B}= \frac{1}{8}- \frac{1}{12}

\frac{1}{B} = \frac{1}{24}

This means that B can do 1/24 fraction of the job per day and can completely finish the job in 24 days.

For more rate work-rate problems, please refer to the link brainly.com/question/14464103.

#SPJ4

You might be interested in
7 x 5 x35 = 701223123
9966 [12]

Answer:

don't know how to answer that lol

Step-by-step explanation:

6 0
2 years ago
One side if the labtop is 9.5 inches and the other side is 14 inches. Using the Pythagorean Theron, what is the length of the di
Digiron [165]

(side 1)² + (side 2)² = (diagonal)²

(9.5² + (14)² = (diagonal)²

90.25 + 196 = (diagonal)²

286.25 = (diagonal)²

√286.25 = √(diagonal)²

17 = diagonal

Answer: 17 inches

3 0
3 years ago
Lorraine and her family went to the beach for 4 hours on Sunday. They left the beach at 4:20 P.M. What time did they arrive at t
Airida [17]

ok so take 4:20 pm and subtract 4 hrs from it so they left at 12: 20 pm

hope this helps :)

3 0
2 years ago
A rectangular garden has length and width as given by the expressions below.
Tom [10]

Answer:

P = -12xy - 56y - 42x + 8

Step-by-step explanation:

                                    P = 2L + 2W

P = 2(4 - 7(3x + 4y)) + 2(3x(-2y))

P = 8 - 14(3x + 4y) + 6x(-2y)

P = 8 - 42x - 56y - 12xy

                              P = -12xy - 56y - 42x + 8

3 0
3 years ago
Read 2 more answers
Holly missed 8 of 185 school days this year. Approximately what percent of school days was Holly in attendance?
natulia [17]
8/185 = 4.3 % 
That is the number of days she missed so she was in attendance

100-4 = 96%
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which inequality shows twelve times the sum of three plus c is greater than 27?
    9·1 answer
  • Marissa collects coins for 7 days. If she collects about the same number of coins each day for a total 1414 coins
    10·2 answers
  • Which of the following math statements contain variable(s)? Check all that apply.
    13·2 answers
  • Help me please please please
    9·1 answer
  • Aisha changed 1.45 + 2.38 to 1.5 + 2.4 in order to estimate the sum. What estimation method did she use? front-end clustering ro
    10·2 answers
  • A line that includes the points (k,7) and (0,8) has a slope of 1 7 . What is the value of k?
    8·1 answer
  • 6 colums
    10·1 answer
  • Which ordered pairs are solutions to the equation?
    14·1 answer
  • Writing equations from graphs
    8·1 answer
  • Solve the equation<br>6j + 27 = j + 57​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!