Question

Trina earns $28.50 tutoring for 3 hours. Write an equation relating her earings m to the number of hours h she tutors. Assuming the situation is proportional, how much would Trina earn turtoring for 2 hours? 4.5 hours?

Answer 1

28.50÷3= 9.50/ hr


2 hours would be
2×9.50= $19


4.5 hours would be
4.5×9.5=42.75

Answer 2

Equation forms :
`m=9.5h`

Explanation:

Trina earns $28.50 tutoring for 3 hours.

So, per hour earnings of Trina are =
`(28.50)/(3)= 9.5` dollars

Let her total earnings be m

Let the number of hours she tutors be h

To establish an equation multiply the hourly rate by h.

`m=9.5h`

And when h = 2 hours;

`m=9.5(2)`

m = $19.

When h = 4.5 hours;

`m=9.5(4.5)`

m = $42.75