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Calvin babysits for $6 an hour. Marilyn charges $10 plus $3 an hour. After how many hours is it cheaper to hire Marilyn?
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Calvin babysits for $6 an hour. Marilyn charges $10 plus $3 an hour.

After how many hours is it cheaper to hire Marilyn?

User Mathd
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1 Answer

2 votes

3 hours because 6 x 3 is 18 and Marilyn charges $13 an hour

User Ruben Bartelink
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