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Naily [24]
2 years ago
5

it takes 47 minutes for 7 people to paint 7 walls. how many minutes does it take 20 people to paint 20 walls?

Mathematics
1 answer:
4vir4ik [10]2 years ago
6 0

Answer:

7 people, 7 walls, 48 minutes

 

Each person paints 1 wall in 48 minutes

 

20 persons, 20 walls


Each person can paint 1 wall in 48 minutes so it will  take 48 minutes.



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Juan recently entered into a contract for a cell phone plan. The table shows the monthly cost in dollars, f(x), if Juan sends x
Delicious77 [7]

Answer:

A linear function is represented

Step-by-step explanation:

The table is:

x   f(x)

0   10.00

1    10.02

2   10.04

3   10.06

4   10.08

5   10.10

If we compute the difference between two consecutive function values and we divide it by the difference between their associated x values we get:

(10.02 - 10.00)/(1-0) = 0.02

(10.04 - 10.02)/(2-1) = 0.02

(10.06 - 10.04)/(3-2) = 0.02

(10.08 - 10.06)/(4-3) = 0.02

(10.10 - 10.08)/(5-4) = 0.02

This constant result indicates that a linear function is represented.

5 0
3 years ago
How many solution this equation have 3r-5=3r-5​
kykrilka [37]

Answer:

infinite solutions

Step-by-step explanation:

Hello!

Since 3r - 5 is on both sides of the equation we can put any number in for r and it would still be true so the answer is infinite solutions

The answer is infinite solutions

Hope this helps!

5 0
3 years ago
A sample proportion is always equal to the corresponding population proportion
UNO [17]
What is your question?
4 0
3 years ago
What's the volume of a cone with the base of 14ft?
Nostrana [21]

Answer:

volume =  \frac{1}{3} \pi {r}^{2} h \\ but \: h = 7 \tan(50 \degree)  \\ h = 8.34 \: ft \\ volume =  \frac{1}{3}  \times 3.146 \times  {(7)}^{2}  \times 8.34 \\ volume = 428.55 \: cubic \: ft

7 0
3 years ago
Question 10 (1 point) Solve for x. 1/2+x/6=4/3
jek_recluse [69]

Answer:

The value of x for the given expression is 5 .

Step-by-step explanation:

Given expression as

\dfrac{1}{2} + \dfrac{x}{6} = \dfrac{4}{3}

Now, arrange the equation

So, \dfrac{x}{6} = \dfrac{4}{3} - \dfrac{1}{2}

<u>Taking L.C.M on right hand side </u>

Or,  \dfrac{x}{6} = \dfrac{8 -3}{6}

Or,  \dfrac{x}{6} = \dfrac{5}{6}

Or, x = \frac{5\times 6}{6}

∴  x = 5

So, The value of x = 5

Hence,The value of x for the given expression is 5 . Answer

5 0
2 years ago
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