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balandron [24]
3 years ago
12

it takes 21 minutes for 5 people to paint 7 walls. how many minutes does it take 3 people to paint 10 walls

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
8 0
21/7=3mins per wall with 5 people.
Because we assume that all of the people paint at the same rate, 3 X 5=15 mins for one person working alone.
15/3=5 mins per wall with 3 people X 10 people= 50 mins for 3 people to paint 10 walls.


The answer is 50 mins.
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If i drive from my town to town a and then to town b and the journey time was 50 minutes what is my average speed
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Step-by-step explanation:

distance must be given

average speed is distance and time

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3 years ago
Pls helpppppppppppppp
OLEGan [10]

Answer/Step-by-step explanation:

The following steps to solve equation given by join are shown below including the property of numbers applied for each reasons:

4(2a + 3) = -3(a - 1) + 31 - 11a ----› Given

Apply the distributive property to open the parentheses

4*2a + 4*3 = -3*a -3*-1 + 31 - 11a

8a + 12 = -3a + 3 + 31 - 11a ----› Distributive property

Combine like terms together

8a + 12 = 3 + 31 -3a - 11a

8a + 12 = 34 - 14a ---› Combining like terms

Add 14a to both sides

8a + 12 + 14a = 34 - 14a + 14a

22a + 12 = 34 ----› Addition property

Subtract 12 from both sides

22a + 12 - 12 = 34 - 12

22a = 22 ----› subtraction property of equality

Divide both sides by 22

22a/22 = 22/22

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7 0
3 years ago
If a machine produces 15 screws per​ minute, how many screws will it produce in 22 ​hours?
Sindrei [870]
15 × 60 = 900
900 × 22 = 19800

The answer is 19800 screws
5 0
3 years ago
You are painting all four walls of a shed. Each wall is a rectangle with a length of 14 feet and a height of 8 feet. A gallon of
Setler [38]
It's 448 square feet so you'll require 1 and some. buy 2 gallons
7 0
3 years ago
Mr.Ramirez had $600. He saved 3/5 and spent 3/8 of the remainder
Alex73 [517]

Answer:

$450

Step-by-step explanation:

Given function:

  • $600,3/5,3/8

To solve:

  • $600-3/5-3/8+3/5

Subtract the two terms:

  1. 600=\frac{30}{5}
  2. 600·\frac{3}{5}=360

Subtract the first value by 360:

  • 600-360=240

Find 3/8 of 240 and then subtract it:

  • 240·\frac{3}{8}=90

Combine the terms:

360+90=450

Therefore, Mr.Raminrez now have a total of $450..

5 0
3 years ago
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