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marysya [2.9K]
3 years ago
7

At the karate school, Class A has 8 students with an average age of 6 years. Class B has 12 students with an average age of 9 ye

ars. The classes combine for a group workout.
What is the average age of the combined classes?

Enter your answer as a decimal in the box.
Mathematics
2 answers:
Murrr4er [49]3 years ago
7 0

Answer: I took the test and the answer is 7.8

Good luck!

ELEN [110]3 years ago
3 0
IT IS 7.8 AND I  KNOW IT IS RIGHT
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Answer:

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Step-by-step explanation:

See attachment for complete question.

From the attachment:

P = (-3,-3)

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Dilation:

D_{(0.5,P)}

Required

Determine R'

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R' = (2-3,2.5-3)

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