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
bulgar [2K]
3 years ago
8

If it takes John 10 hours to paint the fence, how long will it take John and his two friends to do the job if they work at the s

ame rate?

Mathematics
1 answer:
VMariaS [17]3 years ago
3 0

Answer:

look in picture below :)

You might be interested in
A pet store sells goldfish and hermit crabs,
Elis [28]

Answer:

Cost = \$28

Step-by-step explanation:

Given

Represent Goldfish with g and hermit crabs with h.

The first statement, we have:

7g + 3h = 26

The second statement, we have:

4g + 5h = 28

Required

Determine the selling price of 6 goldfish and 4 hermit crabs

The equations are:

7g + 3h = 26 --- (1)

4g + 5h = 28 --- (2)

Make g the subject in (2)

4g + 5h = 28

4g = 28 - 5h

Divide both sides by 4

g = \frac{1}{4}(28 - 5h)

Substitute \frac{1}{4}(28 - 5h) for g in (1)

7g + 3h = 26

7(\frac{1}{4}(28 - 5h)) + 3h = 26

\frac{7}{4}(28 - 5h) + 3h = 26

Multiply through by 4

4 * \frac{7}{4}(28 - 5h) + 4*3h = 26*4

7(28 - 5h) + 4*3h = 26*4

Open bracket

196 - 35h + 12h = 104

196 -23h = 104

Collect Like Terms

-23h = 104-196

-23h = -92

Make h the subject

h = \frac{-92}{-23}

h = \frac{92}{23}

h = 4

Substitute 4 for h in g = \frac{1}{4}(28 - 5h)

g = \frac{1}{4}(28 - 5*4)

g = \frac{1}{4}(28 - 20)

g = \frac{1}{4}(8)

g = 2

This implies that:

1 goldfish = $2

1 hermit crab = $4

The cost of 6 goldfish and 4 hermit crabs is:

Cost = 6g + 4h

Cost = 6*\$2 + 4*\$4

Cost = \$12 + \$16

Cost = \$28

5 0
3 years ago
When CPI data is collected, what does the index value represent?
gladu [14]

Answer:

When CPI data is collected, what does the index value represent. Prices used to compute CPI are collected during the entire month, and that data is published monthly. So, the index value represents an estimate of the price level for the month as a whole, rather than a specific date.

Step-by-step explanation:

MARK ME BRAINLIEST: )

THANK YOU!!!

7 0
2 years ago
How do I graph {3,1,-1,-3}​
nalin [4]
This is very sloppy but u hope it helps
6 0
3 years ago
What’s the answer to this
Alchen [17]

Answer:

C

Step-by-step explanation:

y=1/x, the reciprocal is the same. Reciprocal would be reflected across y=x

6 0
3 years ago
Suppose that the population of deer in a state is 1,500 and is growing 2% each year. Predict the population after 4 years.
DIA [1.3K]
Yes that's right. B 1,624
5 0
2 years ago
Other questions:
  • <img src="https://tex.z-dn.net/?f=4%20%5Ctimes%204" id="TexFormula1" title="4 \times 4" alt="4 \times 4" align="absmiddle" class
    7·1 answer
  • 2.2 * 10^-2 * 4 * 10^4 i need help asap im really confused
    5·1 answer
  • 4/7b=22 help solve please
    8·1 answer
  • Reflection Lines A reflection line is equidistant from a pre-image point and its image. Therefore, in segment AA’, point M is th
    10·2 answers
  • Answer question 4 plz!<br> (100 points!!!)
    9·2 answers
  • Question 1<br> What is the dashed part of the figure below?
    10·2 answers
  • *Will mark brainest!* Determine whether the guven equations are parallel, perpendicular or neither.
    9·1 answer
  • Mr. Nicholas invested $4,250 into an account that pays 3.5% interest, compounded annually. How much will Mr. Nicholas’s investme
    15·1 answer
  • What is 490 miles traveled on Saturday and 225 miles on Sunday. About how many more miles did it travel on Saturday?
    8·1 answer
  • Evaluate the expression when a=4 and b=-3.<br> -a +4b
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!