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Nata [24]
3 years ago
11

Robert can paint a certain wall in 4 minutes, while it takes Jack 12 minutes to paint the same wall. How long will it take Rober

t and Jack to paint the wall working together?
Mathematics
1 answer:
olga_2 [115]3 years ago
3 0
It will take 24 minutes.
this is because the lowest common multiple is 24.

hope this helps you
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Ordenar de menor a mayor estas fracciones 1/6,1/8,1/3
ludmilkaskok [199]
Order the fractions in ascending order:
{1/6,1/8,1/3}
={4/24,3/24,8/24}
=> in ascending order:
3/24,4/24,8/24
= 1/8, 1/6, 1/3

6 0
3 years ago
When Carrie mows a lawn, she charges a flat fee of $5 plus an hourly rate, r. Carrie worked 2 hours at her last job. The equatio
Dmitrij [34]

Answer:

$7.50

Step-by-step explanation:

You use inverse operations to evaluate the equation. You subtract 5 from 20, which is 15. Then you divide 15 by 2, which is 7.5.

3 0
4 years ago
Tina bought a painting while on vacation in 2009. The table below shows the value of the painting in2009,2010,and2011. If this t
otez555 [7]

Answer:

The answer is E

Step-by-step explanation:

We first are going to look at our first term on the table(the number that comes up first) which is $75.

Then we have to find the common factor. So, you divide the second number by the first number( 88.50 divided by 75 which gets us 1.18).

<em>Now, since we found the first term and the common factor, we are going to have to find the exponent for our f(x) equation.   </em>

<em>We know that she bought the painting in 2009! Now the problem is asking how much the painting will cost in 2030. So, you will subtract 2030-2009 which gets you 21! So 21 is your exponent!</em>

<em>Equation: </em><em>   F(x)= 75(1.18) ^21 </em>

<em>The answer that you get is:    $2424.28</em>

<em />

<u>Let me know if you have any questions! </u>

:)

6 0
3 years ago
What’s the equation for this table?<br> X : -4, -3, -2, -1<br> Y: -11, -9, -7, -5
tankabanditka [31]

in slope intercept form :

y = 2x - 19

( I think )

8 0
3 years ago
In a factory, an assembly line can manufacture 39 widgets per second. In another factory, 6 widgets are combined to make 1 whooz
Rudik [331]
Given:
39 widgets per seconds
6 widgets to make 1 whoozit

3,500,000 whoozits * 6 widgets/whoozits = 21,000,000 widgets
21,000,000 widgets / 39 widgets/sec = 538,461.54 seconds

1 day = 24 hours
1 hour = 60 minutes
1 minutes = 60 seconds
1 hour = 3600 seconds

3,600 seconds * 24 hrs = 86,400 seconds 
538,461.54 seconds / 86,400 seconds per day = 6.23 days.

B. 6 days.
4 0
3 years ago
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