X-coordinate: -.50
Y-coordinate: -.55
(a) 8.64 hours (b) 5.68 hours (c) .74 hours (44.4 minutes)
A = v/t Multiply both sides by t
A(t) = v Divide both sides by A
t = v / A
He purchased "t" boxes for $4 and then went back later and purchased "t" boxes for $5.
4t + 5t
4t +5t = 9t
