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In 2015, the price of a business math text rose to $150. This is 8% more than the 2014 price. What was the old selling price?

Respuesta :

Set up an equation
150=1.08x
x=$138.88

Answer: old selling priceof businesss math text rose = $138.89

Explanation:

In year 2015, Price of business math text rose = $150

Suppose privious price (year 2014)= x dollars

Previous price is 8% less than the price in 2015 because given that $150 is 8% more than previous year price.

Now write the linear equation for the given information:

x + 8% of x = 150

Solve for x

x + [tex] \frac{8}{100} [/tex]x = 150

x + 0.08x = 150

1.08x = 150

divide 1.08 both the side

x = [tex] \frac{150}{1.08} [/tex]

x = $138.89

Old selling price = $138.89

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