Question

At Ron's Roller Rink, the number of customers has been decreasing at a steady rate of 5% per year. If there were 900 skaters per week in 2000, what is a good estimate for the number of skaters per week in 2006?

Answer 1

The answer is B. 662

Answer 2

660.

Explanation:

900 skaters per week.

As the number of skaters is decreasing the 5%=0.05 we calculate:

2001: 900-900*0.05 = 855.

2002 : 855 - 855*0.05 ≈ 812.

2003: 812- 812*0.05 ≈ 771.

2004: 771-771*0.05 ≈ 732.

2005: 732 - 732*0.05 ≈ 695.

2006: 695-695*0.05 ≈ 660.