The library at a certain university reported the journal prices had increased by 150% over a period of 10 years the report concluded that this representing a price increase of 15% each year if journal prices had indeed increase by 15% each year what percentage increase would that give the over 10 years ron your answer as a percentage to the nearest whole number

Over 10 years, increasing 15% each year, the prices would have increased 305%.

Step-by-step explanation:

If journal prices had a constant rate of increase, it's prices could be modeled by the following equation:

In which P(t) is the price after t years, P(0) is the initial price and r is the rate of increase.

If it increased 15% each year.

We would have r = 0.15. So

Over 10 years

The initial price is 100%

4.05P(0) - P(0) = 3.05P(0)

Over 10 years, increasing 15% each year, the prices would have increased 305%.

so, converting firstly the mixed fractions to improper fractions and then "adding".

the answer will be b x² +x-1

step-by-step explanation: