SOLUTION: graham practiced piano for 135 minutes this morning. He practiced for 65 more minutes this afternoon. Altogether, Graham practiced 10 times longer today than he practiced yesterday
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Question 948556: graham practiced piano for 135 minutes this morning. He practiced for 65 more minutes this afternoon. Altogether, Graham practiced 10 times longer today than he practiced yesterday. How many minutes did graham practice piano yesterday?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
Today: 135 min+65 min=200 minutes
Yesterday: Today/10=(200 minutes/10)=20 minutes
ANSWER: Yesterday, Graham practiced piano for 20 minutes.
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