Question

Identify these variations as a direct, inverse, joint, or combined: 1) r=cs/t 2) l=cmn 3) s= c/(t^3) 4) y=cx^2

Answer 1

for example \[r=\frac{cs}{t}\]r varies direct with c because r will increase when c increases

r varies inverse with t because r will dexrease when c increases