48. If d varies directly as t^2, then we can write dt^2 = k, where k is some constant. 48. If d varies directly as t^2 then we can write dt^2 = k where k is some constant. August 5, 2021 Category: Chapter 13 - Direct and Inverse Proportions , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related