305survivor
305survivor
25-10-2015
Mathematics
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$199 MP3 player; 15% discount
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Аноним
Аноним
25-10-2015
Divide $199 into 100 parts, then take 85 of those parts to get your answer...
199 / 100 = 1.99
-------
1.99 x 85
= (2.00-0.01) x 85
= 2 x 85 - 0.85
= 2 x (80 + 5) - 0.85
= 160 + 10 - 0.85
= 170 - 0.85
= 169.15
-----------
Answer:
$169.15
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