Answer
2004
Work Step by Step
To find the year in which about 22 million bicycles were sold, substitute 22 for y in the equation.
22=0.3x+15
Create a table to solve the equation. The table will list possible values of x and the result when that value for x is used in the equation. Look for the result closest to 22.
x− 0.3x+15−−−−−−−−
10 18
20 21
21 21.3
22 21.6
23 21.9⟶ 23 years after the initial date is the nearest to 22 million
24 22.2
To find the actual year, you must add 1981 to the number of years since 1981.
1981+23=2004
