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OpenStudy (anonymous):
Julie is a math tutor in the academic center. She charges $210 for the first 7 hours of tutoring and $20 for each additional hour of tutoring. If she earned $410 tutoring 1 student, how many total hours did she spent tutoring the student?
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OpenStudy (anonymous):
OpenStudy (anonymous):
17??
OpenStudy (anonymous):
410-210=200. So she earned $200 in hours ABOVE seven hours. So 7 hours + $200/$20 = 7+10=17 hours
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