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
Brrunno [24]
3 years ago
14

joe and Eric have to ship 75 packages. Joe can do the job alone in 5 hours. if Eric helps, they get it done in 4 hours. How long

would it take Eric to do the job alone?​
Mathematics
1 answer:
Umnica [9.8K]3 years ago
8 0

Eric took 20 hours to do the job alone.

<u>Step-by-step explanation</u>:

<u>Given </u>:

  • Total work = 75 packages
  • Joe took 5 hours to complete the total work.

The amount of work Joe alone can do per hour = 75/5 = 15 packages.

The amount of work Joe and Eric together do per hour = 75/4 = 18.75

The amount of work Eric alone can do per hour = 18.75 - 15 = 3.75

The time Eric took to complete the entire work = 75 / 3.75 = 20 hours.

You might be interested in
Solve (-7/3)x-3=-52<br><br><br> Helppp pleasee
Trava [24]
<span>At WallpaperBrowse.com you can browse all the images you are ...</span>
4 0
3 years ago
Read 2 more answers
A carpenter has a 10 1/2 foot wood plank. He cuts off 4 1/4 feet to replace a deck board as well as 3 2/3 feet to repair a step.
suter [353]

Answer:

The carpenter used 2 7/4 feet of plank for the shelf

Step-by-step explanation:

Total length of plank =10 1/2 foot

He used

For Deck board=4 1/4 feet

Step=3 2/3 feet

Shelf=x feet

Total plank=deck board + step + shelf

10 1/2 = 4 1/4 + 3 2/3 + x

Change the fractions

21/2 = 17/4 + 11/3 + x

Add 17/4 + 11/3

21/2 =51+44/12 + x

21/2= 95/12 + x

Collect like terms

21/2 - 95/12 =x

126-95/12 = x

31/12=x

2 7/12 =x

Therefore, the carpenter used 2 7/4 feet of plank for the shelf

Answer:

Step-by-step explanation:

Total length of plank =10 1/2 foot

He used

For Deck board=4 1/4

Step=3 2/3

Shelf=x

Total plank=deck board + step + shelf

10 1/2 = 4 1/4 + 3 2/3 + x

3 0
3 years ago
find the equation of the tangent to the curve y=x^2-2x-3 at the points where the line y=5 cuts the parabol​
olchik [2.2K]

ugh i hate tangents. never understood it

5 0
3 years ago
Draw the graph of each line y=2x-3
torisob [31]

Step-by-step explanation:

Here is the answer for your question

5 0
3 years ago
Read 2 more answers
Please help! i really need this
Katen [24]

Answer:

1/6

Step-by-step explanation:

on the cube, each number is listed one time. if he rolls the cube one time, he has 1/6 chance of it landing on 4.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which expression is equivalent to 5(x + 7)?
    8·1 answer
  • I need help on these questions wait a minute or 2 for we to upload the file their are 6 files.
    9·1 answer
  • Write an expression to represent: the sum of four and the product of three and a number x
    8·2 answers
  • What does nPn represent?
    15·1 answer
  • A colector has 120 movie posters and 100 band posters she wants to sell 24 movie posters but still have her poster collection ma
    14·2 answers
  • 3x+2y=5 , solve for y<br><br> Please help I don't understand
    11·2 answers
  • The table in the lesson shows the number of sets of twins, triplets, quadruplets, and quintuplets registered at a twin conventio
    7·1 answer
  • A line with slope $\frac 23$ contains the point $P(-18, -12)$. What is the $x$-intercept of the line?
    7·1 answer
  • 5x-25=50 <br> 3x+9=90 n<br> solve both equations
    14·1 answer
  • Draw a line representing the "rise" and a line representing the "run" of the line. State
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!