Tommy's batting average this season is 0.275. this means that he had a hit in 27.5% of his at-bats. if tommy had 11 hits so far this season, how many at-bats has he had?

Tommy is said to have an average of 0.275 meaning he hit 27.5 of bats.
=> Now, his 27.5 % is equals to 11 at-bat hits.
Let’s solve for how many at-bat hits did Tommy did.,
=> 27.5% = 11
=> 100% - 27.5 %  = 72.5% (let’s look for the 72.5% of tommy’s total bat hit)
=>  Let’s try 40
=> 40 * .725 = 29
Thus we have:
=> 11 + 29 = 40, the total bat of Tommy is 40