Question
If s varies directly as (r+1),and s=8 when r=3, calculate the value of r when s=20
Answers
oobleck
s = k(r+1)
so, s/(r+1) is constant.
You want r such that
20/(r+1) = 8/(3+1)
so, s/(r+1) is constant.
You want r such that
20/(r+1) = 8/(3+1)