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
DerKrebs [107]
3 years ago
12

It takes 40 minutes for 8 people to paint 4 walls. How many minutes does it take 10 people to paint 7 walls?

Mathematics
1 answer:
77julia77 [94]3 years ago
3 0
Let's first break it down to the time 8 people need for one wall. That would be 10 minutes, right? If one person would have to do it in stead of 8, you'd expect him to take 80 minutes.

To paint 7 walls, he would nee 7x80 = 560 minutes. 10 people would do that 10 times faster, ie., 56 minutes.

I know puzzles like these always have a mindtrick. Did I miss anything?? ;-)
happy_eclair
2 years ago
Thanks 77julia77 [94]
You might be interested in
Whitney works at an aquarium. She uses hoses of different sizes to fill the fish tanks. Hose A takes 16 min to fill a 160-gal ta
scZoUnD [109]

Answer:

Hose A fills at a rate of 10 gal per min

Hose B fills at a rate of 8 gal per min

Hose B fills at a faster rate

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
25% of 68000 is how much
hjlf
1 \% =\frac{1}{100} \\ \\25 \% =\frac{25}{100}=0,25\\ \\25 \% \cdot 68000 = 0,25 \cdot 68000 =17 000


6 0
2 years ago
Read 2 more answers
You have budgeted $4,800 for a company to complete guest satisfaction surveys for you. They charge $1,800 + $6 per respondent. H
Sophie [7]

Answer:

6

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Twenty years ago a small town in Texas had a population of 10,000. The population has increased 8% each year since then. What eq
andrezito [222]

Answer:

yea

Step-by-step explanation:

4 0
2 years ago
Expand (3x + 1)(x + 2) using the box method of by foiling. Show or explain<br> your steps.
Reika [66]
The result would be 3x^2+7x+2.

If you have any question, tell me and I would be more than happy to help! Thanks.
3 0
2 years ago
Other questions:
  • Hey Boo faces what is 0.38 × 5 × (1/20) × 3 × (−8)
    14·1 answer
  • How to solve -16+x=-4<br> 13
    11·1 answer
  • What is the area of the figure James drew
    12·1 answer
  • If p = 2q2 - 5 and q = 10 – 3r, find<br> a. p when r equals 2 2<br> b. r when p equals 67
    6·1 answer
  • Can someone help me with this math problem
    9·2 answers
  • What do the values of m and b represent in the equation y mx +b?
    5·1 answer
  • What’s the equation for this graph
    8·1 answer
  • The area of the triangle below is square meters. What is the length of the base?
    11·2 answers
  • Solve and check<br> please please help i will mark u as a brill it is easy please
    15·2 answers
  • Leslie joins a fitness club that has a
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!