# Trina earns $28.50 tutoring for 3 hours. How do you write an equation relating her earnings m to the number of hours h she tutors. Assuming the situation is proportional how much would Trina earn tutoring for 2 hours?

##### 1 Answer

Oct 28, 2017

#### Explanation:

#"to calculate her earnings (E) per hour"#

#"hourly rate "=($28.50)/3=$9.50#

#rArr"for 2 hours "=2xx$9.50=$19.00#

#"to establish an equation multiply hourly rate by h"#

#rArr$E=9.5h#

#"check equation for 3 hours that is h = 3"#

#E=9.5xx3=$28.50larr" True"#