View Full Version : selling price plus the 8 percent state sales tax was $15,714
05-28-2009, 08:32 PM
Gwen bought a new Toyota Corolla. The selling price plus the 8 percent state sales tax was $15,714. What was the selling price?
05-28-2009, 11:24 PM
I'll solve a different problem. Maybe this will help.
Joe ate a meal at a restaurant. The bill, including 15% service charge, was $46. How much was the bill before the service charge was added?
Suppose the bill, before service charge, was B.
The service charge was 15% of this, or 15/100 x B.
The total bill was therefore B + 15/100 B = 1.15 B.
But I know that this makes $46, so 1.15 x B = $46. Logically, then, B = $46 / 1.15, which comes to $40. Therefore the bill, before the service charge was added, is $40.
05-29-2009, 12:09 AM
The selling price plus the 8 percent state sales tax was $15,714.
This really says "The selling price plus 8 percent of the selling price was $15,714."
First --- name stuff.
Let p represent the selling price.
Now, translate phrase by phrase.
The selling price plus 8 percent of the selling price was $15,714.
Solve for p.
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