Answer: 8=x days
Step-by-step explanation:
(4/5)mile=((1/10)mile)(x days)
Let's cancel units...
(4/5)mile=((1/10)mile)(x days)
4/5=(1/10)x days
Let's proceed to isolate x by multiplying both sides by 10...
(10)(4/5)=(10)(1/10)(x days)
40/5=x days
8=x days