Question

Karen 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?

Answer 1

we can write it like this.....210 = 7 hours that's $30/hour. we need another 200 dollars. do we need to do 200$/20$hr = ? how many hours on that last part.

Answer 2

ya the problem wants something like: h=7 x, +, or -, 410 + or - 210/ 20 or all of it divided by 20....i dont know what to do though.

Answer 3

ok well lets go through it. it would be 7 hours = 210 of it. so there's 200 left with each hour getting 20$/hr. what is 20 * 10 ?

Answer 4

200

Answer 5

ok there you go! you have yoru total dollars. 210+200 = 410 so how mnay hours were worked?

Answer 6

oh, 7!

Answer 7

no not quite lets look at it

Answer 8

okay, sorry.

Answer 9

it's ok :) you can do it though! you have 7 correctly but there's more to add to it. how many hours are worked in the 200$ part?

Answer 10

uh 21??

Answer 11

very close! if you get paid 200$ for a job charging 20$/hr how mnay hours would you have worked?

Answer 12

it would be 200/20 = ?

Answer 13

oh so it's 10 hours?

Answer 14

ok so that's the other half, so it would be 7 for the first part and 10 for the second part and that makes?

Answer 15

so was 17 a choice of your answers?

Answer 16

yes! is that right?