Answer:
69a-10
Step-by-step explanation:
If 39 = (1 3/10)b, we could simplify this by writing 39 - (13/10)b.
Solve this for b by mult. both terms by (10/13):
(10*39)
----------- = (10/13)(13/10)b. Then b = 30 (answer)
13
You would pay 80% of the original price because 1/5 is 20% and you would subtract 20 from 100 to get 80 as your answer
Hope this Helps :3
