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Svetlanka [38]
3 years ago
10

At the newest animated movie, for every 9 children, there are 4 adults. There are a total of 39 children and adults at the movie

.
How many children are at the movie?
Mathematics
1 answer:
WARRIOR [948]3 years ago
8 0
For every 9 children, there are 4 adults.
If there are 39 children and adults, we can work backwards to find the answer.

Lets start by multiplying 9. Lets do 3. 9 x 3 = 27.
Ok, now we have an estimate of 27 Children, now all we have to do is multiply the number of adults by 3.
Now we can multiply 4 x 3. 4 x 3 = 12. Now we have the number of children and adults.
Now lets add these together. 12 + 27 = 39! Perfect! Now we know that there are 27 children, and 12 adults.

Hope this helps!!
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konstantin123 [22]

Answer:

C) They are perpendicular lines.

Step-by-step explanation:

We first need to find the slope of the graph of the lines passing through these points using:

m =  \frac{y_2-y_1}{x_2-x_1}

The slope of the line that passes through (−12, 15) and (4, −5) is

m_{1} =  \frac{ - 5 - 15}{4 -  - 12}

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m_{2} =  \frac{21 -  - 9}{16 -  - 8}

m_{2} =  \frac{21  + 9}{16  + 8}

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The product of the two slopes is

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Since

m_{1} \times m_{2} =  - 1

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4 0
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Step-by-step explanation:

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Step-by-step explanation:

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                                  9     10  11

12    13      14     15     16     17  18

.........................................................

26    27

3 0
3 years ago
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