Question

if d varies directly as t ,and if d =5 when t=42,find d when t =21​

Answer 1

Answer:

If t=9, them, d=4

If t=9, them, d=4then t=21, d= 4/9 *21

If t=9, them, d=4then t=21, d= 4/9 *21∴ d= 28 /3

hope it helped u