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890777
22.07.2019 •
Mathematics
Brandy is trying to decide between two cell phones. one is free with the two-year contract but she will have to pay the sales tax of 8% on the original price of $399 and the monthly charge is $10 more then she currently pays. the other is on sale for $199 plus a percent sales tax. the monthly charge is the same as she currently pays. over the two year contract period which phone will be the lower cost and by how much?
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Ответ:
8% of 399 +10 per month for 2 years
=(8•399)/100+ 10• 24= 31.92+240=271.92
Second phone
$199+ 8% of 199=199+ (8•199)/100 =199+15.92 = 214.92
271.92 > 214.92
Phone 2 is better
Ответ:
−8
+3x+11
Step-by-step explanation: