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
Nesterboy [21]
3 years ago
14

Working together, sam and charlie can change all the light bulbs in the office building in 3 hours. it would have taken charlie

8 hours to do the job alone.which equation can be used to solve for the rate, r, for sam to change all the light bulbs in the office building by himself?
Mathematics
2 answers:
KATRIN_1 [288]3 years ago
8 0
We have a work problem here. We can use our knowledge on ratio and proportion in order to set up and equation to determine what is being asked. We do as follows:

1 job / 3 hours for both = 1 job / 8 hours for charlie + 1 / x hours for sam alone

Therefore, the equation would be

1/3 = 1/8 + 1/x
Natasha_Volkova [10]3 years ago
5 0

Answer:

The correct answer is <u>3r + 3/8 = 1 .</u>

You might be interested in
What is the answer for x2+5x-3y
Zarrin [17]

Answer:

6

Step-by-step explanation:

6 0
3 years ago
What is 20 more than f
timurjin [86]
This phrase can be written as 20 + f.

So, 20 + f is the answer.
6 0
3 years ago
Read 2 more answers
Solve the problem. Find the amount of money in an account after 12 years if $4700 is deposited at 5% annual interest compounded
Dmitrij [34]

Answer:

The correct answer is $8532.17

Step-by-step explanation:

The formula for calculating investments with compound interests is as follows:

(1+\frac{R}{t})^{tn}*P

Where:

R is the annual interest rate,

t is the number of times the investment is to be compounded in a year,

n is the number of years,

P is the principal amount invested.

Replacing in the formula with the given values you have:

(1+\frac{0.05}{4})^{4*12}*4700 = 8532.1678

3 0
3 years ago
Match each expression with the equivalent expanded expression.
adelina 88 [10]

Answer:

Question

Match each expression with the equivalent expanded expression.

0.5 (2x + 3)

- 10x - 3

1/3 ( 9 +81)

8x - 4

-5 (2x + 3/5)

-2x + 3

2 (4x-2)

x + 1.5

-3 (2/3x - 1)

30

Answer:



Step-by-step explanation:



Step-by-step explanation:

Question

Match each expression with the equivalent expanded expression.

0.5 (2x + 3)

- 10x - 3

1/3 ( 9 +81)

8x - 4

-5 (2x + 3/5)

-2x + 3

2 (4x-2)

x + 1.5

-3 (2/3x - 1)

30

Answer:



Step-by-step explanation:



5 0
3 years ago
Read 2 more answers
Find the area of this shape.
ch4aika [34]
The top part of the shape is 8x6 and the bottom part is 6x6 so the answer is 84
3 0
3 years ago
Other questions:
  • 10 points easy peasy​
    9·2 answers
  • A score that is 7 under par in golf
    13·1 answer
  • 6. At a school supply store, the price of three
    11·2 answers
  • I need help with that question please
    14·2 answers
  • A rectangle is 8 inches long and 4 inches wide. A similar rectangle is 12 inches long. What is the width of the second rectangle
    9·1 answer
  • Find the area of the figure below.<br>8 cm<br>10 cm<br>18 cm<br>​
    14·2 answers
  • What is the awnser pls help
    8·1 answer
  • A person has 50,000 in taxable income for a year and pays a 10 percent income tax rate equal to 5,000 which action would reduce
    6·2 answers
  • Felix want to work out how much it costs him to use his tumble dryer.
    8·1 answer
  • estimate by rounding to the nearest ten. the find the product 12.93×29.6 The estimate is= The product is=​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!