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
KATRIN_1 [288]
2 years ago
10

Alyssa can complete a job in 12 minutes. If Miranda helps her, they can complete the job in 9 minutes. How long would it take Mi

randa to complete the job by herself? (In minutes.) Rate of work problem
Mathematics
1 answer:
miv72 [106K]2 years ago
4 0

Answer:

36 minutes

Step-by-step explanation:

The key is to get the same amount of time for each.

9 * 12 = 108

At 12 minutes per job,

in 108 minutes Alyssa could do

108/12 = 9 jobs

At 9 minutes per job,

Together in 108 minutes they could do

108/9 = 12 jobs

--------------------------

In 108 minutes Mirada does

12 - 9 = 3 jobs

108/3 = 36 minutes per job

You might be interested in
Pls pls help ???!!!!
Blizzard [7]

Answer 3x3.4

Step-by-step explanation:

8 0
2 years ago
How many 'faces' are on this square pyramid?​
qaws [65]

Answer:

5

Step-by-step explanation:

There are 5 faces on a square pyramid

7 0
3 years ago
I need help with algebra
rosijanka [135]

Answer:

x = -1 and y = 6

Step-by-step explanation:

using x = -b/2a

x = -4 / 2(2)

x = -1

y = 2(-1)² + 4(-1) + 8

y = 2 - 4 + 8

y = 10 - 4

y = 6

4 0
2 years ago
What is a number increased by 7 multiplied by 4?
Lana71 [14]

Answer:

9?

Step-by-step explanation:

9 + 7 is `16, and 16 is a multiple of 4

4 0
3 years ago
Suppose there is a simple index of two stocks, stock A and stock B. Stock A opens on Monday with 5000 shares at $2.75 per share.
Yanka [14]

Answer:

Step-by-step explanation:

What is the name of an investment that pools money from many investors in order to acquire a large variety of stocks, bonds, and other investments?

A.

Mutual fund

close

B.

Annuity

C.

Derivative

closeIncorrect

done

Question 2

2 points

What is the name of the computerized system that provides price quotations for various stocks traded on the market?

A.

NYSE

done

B.

Nasdaq

C.

Dow Jones

doneCorrect

done

Question 3

2 points

On a particular day, the Dow Jones had a rate of change of 2.8%. Which of the following statements must also be true?

A.

The Nasdaq decreased.

B.

The S&P 500 increased.

done

C.

The average of the 30 stocks in the Dow Jones increased.

D.

Every stock in the Dow Jones increased.

doneCorrect

done

Question 4

2 points

At the beginning of the day, stock XYZ opened at $3.72. At the end of the day, it closed at $4.05. What is the rate of change of stock XYZ?

A.

9.8%

done

B.

8.9%

C.

4.1%

D.

3.7%

doneCorrect

done

Question 5

2 points

What is the name of the federal agency that regulates the investment industry?

A.

NYSE

done

B.

SEC

C.

S&P 500

doneCorrect

done

Question 6

2 points

At the beginning of the day, the sum of the stocks in the Dow Jones was $10,289.57. At the end of the day, the sum of the stocks in the Dow Jones was $10,124.19. What was the rate of change of the Dow Jones on this particular day?

A.

-1.8%

B.

-1.0%

done

C.

-1.6%

D.

-1.2%

doneCorrect

done

Question 7

2 points

Suppose there is a simple index of three stocks, stock ABC, stock XYZ, and stock QRS. Stock ABC opens on day 1 with 5000 shares at $3.25 per share. Stock XYZ opens on day 1 with 500 shares at $8.25 per share. Stock QRS opens on day 1 with 10,000 shares at $4.75 per share. The price of stock ABC on day 8 begins at $2.80. The price of stock XYZ on day 8 begins at $7.50. Stock QRS opens on day 8 with a price of $4.10 per share. Assume that each stock has the same number of shares that it opened with on day 1. What is the rate of change of this simple index over 1 week?

A.

15.5%

B.

13.4%

C.

-15.5%

done

D.

-13.4%

doneCorrect

done

Question 8

2 points

What is the name of indicator of stock market prices that is the average of 30 selected industrial stocks?

done

A.

Dow Jones

B.

SEC

C.

S&P 500

doneCorrect

done

Question 9

2 points

Suppose there is a simple index of three stocks, stock X, stock Y, and stock Z. Stock X opens the day with 2000 shares at $3.80 per share. Stock Y opens the day with 1000 shares at $3.50 per share. Stock Z opens the day with 3000 shares at $4.30 per share. This simple index rises 5.4% over the course of the day. What is the value of the index at the end of the day? Round your answer to the nearest hundred.

A.

$25,800

B.

$24,600

done

C.

$25,300

D.

$24,000

doneCorrect

close

Question 10

0 points

Suppose there is a simple index of two stocks, stock A and stock B. Stock A opens on Monday with 5000 shares at $2.75 per share. Stock B opens on Monday with 3000 shares at $4.30 per share. Stock A opens on Tuesday at $3.10 per share, and stock B opens on Tuesday at $4.85 per share. Both stocks have the same number of shares that they opened with on Monday. What is the rate of change of this simple index over 1 day?

A.

-11.3%

close

B.

-12.8%

C.

12.8%

D.

11.3%

closeIncorrect

4 0
3 years ago
Read 2 more answers
Other questions:
  • Rebecca must complete 15 hours of volunteer work. She does 3 hours each day. Write a linear equation in slope-intercept form to
    15·1 answer
  • What ordered pairs are on the graph of 7x-y=2
    7·1 answer
  • Ina a class of 30 children,60% can swim. how many children cannot swim?
    7·1 answer
  • I have one curved surface and one circle face. That's it.<br> I am a
    7·2 answers
  • What is 22222222222×2​
    5·2 answers
  • You are designing a new container for powdered laundry detergent. You are considering a cylindrical container with a diameter of
    14·1 answer
  • X - y = 1 <br>Convert the equation from standard form to slope-intercept form.​
    13·2 answers
  • I'm so fed up with Brainly but anyway help
    9·2 answers
  • How do you turn 3.0035 into a fraction?<br> explain?
    6·2 answers
  • For a population with µ = 80 and σ = 20, the distribution of sample means based on n = 16 will have an expected value of _______
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!