e is a math tutor. She charges each student $210 for the first 7 hours of tutoring and $20 for each additional hour. When the number of hours (h) that Julie spends tutoring a student is greater than 7 (h > 7), the equation that gives the amount (A) that Julie earns in dollars is. If Julie earns $410 tutoring one student, the total number of hours she spent tutoring the student is.

Question

Mathematics

Cristian Neal

9 May, 14:11

e is a math tutor. She charges each student $210 for the first 7 hours of tutoring and $20 for each additional hour. When the number of hours (h) that Julie spends tutoring a student is greater than 7 (h > 7), the equation that gives the amount (A) that Julie earns in dollars is. If Julie earns $410 tutoring one student, the total number of hours she spent tutoring the student is.

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Answers (1)

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Shania Short · Answer 1

Part 1:

if the number of hours (h) is greater than 7.

Equation for the amount (A) in dollar is

Amount (A) = 210 + (h-7) x20

Part 2:

if she earns 410,

with the same equation

410 = 210 + (h-7) x 20

200 = (h-7) x 20

10 = h-7

17 = h

therefore, number of hours tutored is 17.