According to the national center for health statistics, in 1990, 28% of babies in the united states were born to parents who were not married, throughout the 1990's this increased by approximately 0.6% per year. if this trend counties in which year will 64% of babies be born out of wedlock

The following equation can be used to find the number of years for the percentage to increase from 28% to 64%.

where n is the above-mentioned number of years.
Solving the equation for n can be done in the following steps:



Therefore the year in which 64% of babies will be born out of wedlock will be approximately 1990 + 138 = 2128.