Question

An oil companys

fills 1\10 of a tank in 1\5 hour. At this rate, which expression can be used to determine how long it will take for the tank to fill completely?​

Answer 1

Answer: 2 h

Explanation:

1/10=0.1

1/5=0.2

Use proportion:

0.1:0.2=1:x

x*0.1=0.2

x=0.2/0.1

x=2