SOLUTION: Maria practiced the recorder for 40 minutes on Saturday. She practiced 10 minutes less in the afternoon than in the morning. How many minutes did Maria practice in the morning? in
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Question 108343: Maria practiced the recorder for 40 minutes on Saturday. She practiced 10 minutes less in the afternoon than in the morning. How many minutes did Maria practice in the morning? in the morning?
John and Justin Found 2 solutions by stanbon, MathLover1:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Maria practiced the recorder for 40 minutes on Saturday. She practiced 10 minutes less in the afternoon than in the morning. How many minutes did Maria practice in the morning? in the afternoon?
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Let "x" be number of minutes she practiced in the morning.
Then she practiced "x-10" in the afternoon.
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EQUATION:
x + x-10 = 40
2x = 50
x = 25 minutes (time she practiced in the morning.
x-10 = 15 minutes (time she practiced in the afternoon.
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Cheers,
Stan H.
You can put this solution on YOUR website! Maria practiced the recorder for on Saturday.
She practiced in the than in the .
How many minutes did Maria practice in the ?
If and , then we have:
Since she practiced in the than in the , we can write:
…… we will substitute it in previous formula:
+ – = – = …..divide both sides by ………she practice in the morning minutes…
And in the afternoon:
she practice minutes
Check:
(