CPM Homework Banner

Home > CCA > Chapter 6 > Lesson 6.1.4 > Problem 6-44

6-44.

The cost of a 55 inch HDTV is decreasing 15% per year. Homework Help ✎

  1. What is the multiplier?

    If the cost decreased by 15% each year, the newcost would be 85% of the previous year.

    0.85

  2. If the current cost of the HDTV is $1500, what will it cost in four years?

    In one year the cost will be $1500(0.85).
    In two years the cost will be [$1500(0.85)](0.85).
    Continue this pattern.

  3. If the current cost of the HDTV is $1500, write an equation for the cost in n years.

    Use the pattern in part (b) to write your equation.