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3 years ago

It takes 32 minutes for 3 people to paint 4 walls. How many minutes does it take 4 people to paint 7 walls?

Mathematics

2 answers:

drek231 [11]3 years ago

7 0

Answer:

52 minutes because if you write the problem out on a peice of papaer it will make sense

kirill [66]3 years ago

3 0

Answer:

its 42 the other answer is wrong

Step-by-step explanation:

First calculate how long it will take one person to paint one wall.

Hint #22 / 5

It will take \dfrac{1}{4}

start fraction, 1, divided by, 4, end fraction of the time to paint one wall. So it will take 888 minutes for 333 people to paint one wall.

Hint #33 / 5

For only one person, it will take 333 times as long, so it will take 8 \cdot 3 = 248⋅3=248, dot, 3, equals, 24 minutes for one person to paint one wall.

Hint #44 / 5

So, the number of minutes it will take for one person to paint 777 walls is 24 \cdot 7 = 16824⋅7=16824, dot, 7, equals, 168.

Hint #55 / 5

The number of minutes it will take for 444 people to paint 777 walls is 168 \div 4 = 42168÷4=42

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aliya0001 [1]

Answer:

Any of the set of metallic elements occupying a central block (Groups IVB–VIII, IB, and IIB, or 4–12) in the periodic table, e.g., iron, manganese, chromium, and copper. Chemically they show variable valence and a strong tendency to form coordination compounds, and many of their compounds are colored.

Step-by-step explanation:

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4 years ago

Please help me this is urgent.!

nata0808 [166]

V= 3.14• 5^2•4
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Sorry I couldn’t give a more detailed explanation but here is the original equation for volume of a cylinder:

V=πr2h

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3 years ago

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Angela tried to solve an equation step by step. \begin{aligned} \dfrac34+m&=\dfrac54\\\\ \dfrac34+m-\dfrac34&=\dfrac54+\

Liono4ka [1.6K]

Answer:

The mistake she made was ; She didn't change the sign when subtracting -3/4 from both sides

She wrote 5/4+3/4 instead of 5/4-3/4

Step-by-step explanation:

Correct solution:

$\frac{3}{4} + m = \frac{5}{4}$

Subtract-3/4 from both sides

$\frac{3}{4} - \frac{3}{4} + m = \frac{5}{4} - \frac{3}{4}$

Simplify

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3 years ago

for his long distance phone service, lamar pays a $3 monthly fee plus 11 cents per minute. last month, lamar's long distance bil

e-lub [12.9K]

Let the number of minutes be = x.

Cost per minute = 11 cents = 0.11

Phone Bill = Monthly fee + 0.11* x

Substituting from the question

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0.11x = 20.82 - 3

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x = 17.82/0.11

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3 years ago

3(100) + 6(10) + 8 + 4/100 + 9/1000

melomori [17]

So first step to solving this problem is to multiply and divide the corresponding values

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300 + 6(10) + 8 + 4/100 + 9/1000

6 x 10 = 60

300 + 60 + 8 + 4/100 + 9/1000

4/100 = .04

300 + 60 + 8 + .04 + 9/1000

9/1000 = .009

300 + 60 + 8 + .04 + .009

now add these values together!

300 + 60 + 8 + .04 + .009 = 368.049

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3 years ago

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