Question

Julie 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 A = 210 + 20(h + 7) A = 210 + 20(h - 7) A = -210 + 20(h - 7) A = 210 + (h - 7)/20. If Julie earns $410 tutoring one student, solve for the total number of hours she spent tutoring the student.

A.) 38
B.) 19
C.) 17
D.) 12

Answer 1

The best and most correct answer among the choices provided by your question is the third choice or letter C. The total number of hours is 17.

 For h>7 

C=210+20(h-7) 

C=210+20h-140 

C=20h+70, h>7 

410=20h+70 

20h=340 

h=17 hours

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Answer 2

Answer:

A, then C

Step-by-step explanation: