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RSB [31]
3 years ago
9

On a field trip there are 18 chaperones supervising 81 children. If the children are broken into groups how many adults are need

ed for a group of 27 kids
Mathematics
1 answer:
Butoxors [25]3 years ago
3 0

Answer:

6

Step-by-step explanation:

you first divide 81 by 18 and get 4.5, that is the number of children per adult.

next you'll divide 27 by 4.5 and 6.

that's the answer.

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siniylev [52]

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Part a) The solution is the ordered pair (6,10)

Part b) The solutions are the ordered pairs (7,3) and (15,1.4)

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15x-2x=48+30

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y=\frac{6}{3}+8

y=10

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xy=21 ---> equation A

x+5y=22 ----> equation B

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x=22-5y ----> equation C

substitute equation C in equation A

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22y-5y^2=21

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Solve the quadratic equation by graphing

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