From Monday to Friday, Elle practices piano for 30 minutes. On Saturday, she practices piano three times as much as on a weekday. There is no practice on Sunday. How many hours does Elle spend practicing piano each week?
Let's think step by step below.
4
From Monday to Friday, Elle practices 0.

50 x 5 = 2.

5 hours.

On Saturday, she practices 0.

50 x 3 = 1.

5 hours.

Each week, Elle practices piano for 2.

5 + 1.

5 = 4 hours.

.

So, the answer is 4