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
Yuliya22 [10]
2 years ago
15

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.
A table showing Rate in part per hour, Time in hours, and Part of Light Bulbs Changed. The first row shows,Sam, and has r, 3, and r times 3. The second row shows Charlie, and has StartFraction 1 Over 8 EndFraction, 3 and StartFraction 1 Over 8 EndFraction times 3.
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?

3r = 3 r equals StartFraction 3 Over 8 EndFraction.
3r + 3 r plus StartFraction 3 Over 8 EndFraction equals 1. = 1
r + StartFraction 1 Over 3 EndFraction r plus StartFraction 3 Over 8 EndFraction r equals 1.r = 1
r + StartFraction 1 Over 3 EndFraction r plus StartFraction 1 Over 8 EndFraction r equals 1.r = 1
Mathematics
2 answers:
Virty [35]2 years ago
6 0

Answer:

B

3r + 3/8=1

Step-by-step explanation:

EDGE

vitfil [10]2 years ago
4 0

Answer:

b

Step-by-step explanation:

You might be interested in
Please help me with the question
ivanzaharov [21]

Answer:

3

Step-by-step explanation:

Since it's at the same time of the day, the ratio between the height of the person and the shadow they cast will stay the same. So the man's height to shadow ratio is 6:8 = 3:4. The son's height to shadow ratio would be the same so x:4 = 3:4 therefore his height is 3 feet.

4 0
2 years ago
There are 2 girls and 3 boys on a camping trip. What is the ratio of girls<br> to boys on the trip?
vodka [1.7K]

Answer:

2/3

Step-by-step explanation:

6 0
2 years ago
(10 points)<br>List the angles in order from greatest to least. mpn<br>​
Blizzard [7]

Answer:

C

Step-by-step explanation:

3 0
2 years ago
In a classroom, 4/6of the students are wearing
Airida [17]
The answer is
4/6-3/6=1/6
6 0
1 year ago
Please do this ASAP, it’s due in 30 minutes! <br> Thank you!<br> No links&lt;3
grigory [225]

Answer:

I think it is -24t+20 if you want to simplify

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • How do i calculate a new average with the old average
    5·1 answer
  • Jimmy set his score for his math test. After the math teacher returnee his paper to him, he realized that if he increased his ta
    12·1 answer
  • What is the diffrence bewtween arthimetic for and geomtric form
    12·1 answer
  • Let f(x)=2/x-3. Find f^-1(x)
    15·1 answer
  • A line passes through the two given points. Is it vertical, horizontal, or neither? (-8, 3), (-7, 3)
    9·1 answer
  • The perimeter of a square is 20. Find the length of the diagonal
    7·2 answers
  • BRAINLIEST + POINTS!
    11·2 answers
  • 10 points:) please help i keep getting the wrong answer
    12·1 answer
  • How we all doing? Can someone explain Graphs!
    6·2 answers
  • Which of the following statements about least squares regression analysis is true?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!