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Taya2010 [7]
3 years ago
6

I need help I don’t get it can someone help please

Mathematics
2 answers:
Sindrei [870]3 years ago
8 0

Answer:

472=9s+4 or equivalent.

Step-by-step explanation:

To find the number of students in each bus, we first need to find the number of students who actually went on the 9 buses. Because there were total 472 students and 4 went on cars, then there were a total of 472-4=468 students who went on the 9 buses. If 468 went on the 9 buses, then 468/9=52 students went on each bus. This can be represented by the following equation:

472-4=9s

OR

472=9s+4

Or another equivalent of this equation because we had to first minus 4 from 472 to find the total number of bus students and then divide by 9 to find s, the number of students per bus. However this equation doesn't seem to be part of the options so I don't really know what's going on with that.

Hope this helped!

erastova [34]3 years ago
7 0

Answer:

Opinion 2

Step-by-step explanation:

Hope that will help you

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2. The ratio of radii of two cylinders is 1:2 and heights are in the ratio 2:3. Find the ratio of their volumes.
Savatey [412]

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Step-by-step explanation:

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V=\pi r^2h

Where "r" is the radius and "h" is the height of the cylinder.

In this case, let be:

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- r_1 the radius of the first one and r_2 the radius of the other cylinder.

- h_1 the height of one of them and h_2 the height of the other cylinder.

Then:

V_1=\pi r_1^2h_1\\\\V_2=\pi r_2^2h_2

Therefore, you know this:

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Simplifying, you get:

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Now, knowing the ratios given in the exercise, you can substitute them into the equation:

\frac{V_1}{V_2} =\frac{1^2*2}{ 2^2*3}

Evaluating, you get:

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4 0
4 years ago
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Step-by-step explanation:

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Hope this helps

7 0
3 years ago
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