Answer :
Answer:
20 years
Step-by-step explanation:
Given
[tex]H = 3t + 5[/tex]
[tex]0 \leq H \leq 100[/tex]
Required
Solve for t when H = 65ft
[tex]H = 3t + 5[/tex]
Substitute 65 for H
[tex]65 = 3t + 5[/tex]
Make 3t the subject
[tex]3t = 65 - 5[/tex]
[tex]3t = 60[/tex]
Solve for t
[tex]t = 60/3[/tex]
[tex]t = 20[/tex]
This implies that the duration is 20 years