Answer:
97 years
Step-by-step explanation:
20,000 - 15,862 = 4,138
[tex]\frac{y}{15,862}: \frac{1.3}{100}[/tex]
y Ă— 100 = 15,862 Ă— 1.3
100y = 20620.6
100y Ă· 100 = 20620.6 Ă· 100
y = 206.206
20,000 Ă· 206.206 = 96.9903882525
96.9903882525 rounds to 97