john and his paid computer lessons

Mathematics
Tutor: None Selected Time limit: 1 Day

Apr 12th, 2015

Let x = the number of help sessions

Then,

10.5x + 25.5 = 170

10.5x = 170 - 25.5 = 144.5

x = 144.5/10.5 = 13.76

but John cannot have 0.76 sessions, so the answer is just 13

Apr 12th, 2015

thx


Apr 12th, 2015

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