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ahrayia [7]
4 years ago
10

3(r-6)+2=4(r+2)-21 . Find the value for r?

Mathematics
1 answer:
galben [10]4 years ago
8 0
3(r-6)+2=4(r+2)-21
3r-18+2=4r+8-21
3r-16=4r-13
-3=r

r=-3
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Answer:

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Step-by-step explanation:

Let 'a' represent the number of adult tickets sold. Then (200-a) is the number of child tickets sold, and the revenue is ...

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75 adult ($8) and 125 child ($5) tickets were sold.

__

<em>Additional comment</em>

The question asked here is "how many tickets did Kay sell?" The second line of your problem statement tells you the answer: "Kay sold 200 tickets ...". We have assumed that you are interested in the breakdown of tickets sold, even though that is not the question that is asked here.

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