Question

Kristen's 30-minute piano lesson is 59% complete. About how many more minutes will the lesson last?

Answer 1

12.3 minutes

Explanation:

If 59% of Kristen's class is complete this means that...

100%-59%=41% of her class is incomplete.

So...

41%*30=41/100*30=41/10*3=123/10=12.3 minutes