Answer:
total dollar amount he earned this month is 946 - 2 t
Step-by-step explanation:
given data
tutor = $9
waiter = $11
total time = 86 hours
to find out
total amount earned
solution
as given we consider here no of hours as tutor work = t
so as waiter he work for no of hours = ( 86 - t )
so here
total amount is earned is 9 × t + 11 × ( 86 - t )
total amount is earned = 9 t + 946 - 11 t
total amount is earned = 946 - 2 t
so total dollar amount he earned this month is 946 - 2 t