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"#
