Answer:
Step-by-step explanation:
Given:
Sandy was told to practice playing flute for = hours per day
Sandy has already played = hours today
To find:
how many hours does sandy still need to practice today?
Solution:
we can find simply by subtracting,
Sandy was told to practice playing flute for = hours per day
= =
Sandy has already played today = hours today
=
Sandy still need to practice today =
Taking LCM of 12 and 9 = 36
=
=
= =
Therefore, hours still need to practice today.