Algebra 1: Common Core (15th Edition)

$T=\frac{k}{s}$ (Plug in 2.5 for T and 48 for s) $2.5=\frac{k}{48}$ (Multiply each side by 48) 120=k (Plug in 120 for k and 40 for s) $T=\frac{120}{40}$ T=3