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saul85 [17]
2 years ago
11

If it takes two people six hours to paint a room, how long will it take four people

Mathematics
1 answer:
nika2105 [10]2 years ago
4 0

12 hours

Step-by-step explanation:

just multiply bro

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Please help... need help ASAP due today... which ones are the answers?
andrey2020 [161]

Answer:

Choices 1 and 4 are correct.

Step-by-step explanation:

We first need to find what the slope of the line is. That way, we can find out which possible answers are perpendicular to it:

\frac{4-(-2)}{3-1}=\frac{6}{2}=3

Since we now have the slope, we need the negative reciprocal of it. Remember: if x is the slope, it's negative reciprocal will be -\frac{1}{x}. Therefore, if the line's slope is 3, then we need to find answers with a slope of-\frac{1}{3}.

The first answer is correct, as you have marked. The second answer, while written a little weirdly, does show the slope as 3, which we know as wrong. The third choice is not correct, however. This equation is written in point-slope form, wherey-y_{1}=m(x-x_{1}). The only variable we have to worry about is m, which, in the third choice, is 3. The fourth answer is correct, which sounds weird at first. Let's put that equation into slope-intercept form:

x+3y=9\\3y=9-x\\y=3-\frac{1}{3}x\\y=-\frac{1}{3}x+3

Equations like these can be real sneaky, so it's important not to jump to conclusions with them.

6 0
3 years ago
(this must be in simplest forms) 3 over 14 multiplied by 7 over 9
nikdorinn [45]
The answer is 1/6

Which is 1 over 6
4 0
2 years ago
Each bookshelf at a library holds 100 books. How many bookshelves are needed if the library stocks 12,400 books?
USPshnik [31]

Answer:124

Step-by-step explanation:

12400/100=124

3 0
3 years ago
Read 2 more answers
Which is a true statement<br><br> 5/6 &gt; 10/12<br> 1/4 &gt; 1/3<br> 13/15 &gt; 4/5<br> 6/9 = 1?3
Svetach [21]

Answer:

1/4 > 1/3

Step-by-step explanation:

because its the only that is not equal

6 0
2 years ago
Ay/b-by/a=a^2-b^2. find value of y
klemol [59]
We can actually undsitribute the y

y( \frac{a}{b}- \frac{b}{a})=a^2-b^2
divide both sides by ( \frac{a}{b}- \frac{b}{a})
y= \frac{a^2-b^2}{ \frac{a}{b}-  \frac{b}{a}  }
times the right side by (ab/ab)
y= \frac{ab(a^2-b^2)}{ a^2- b^2  }
y=ab
4 0
3 years ago
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