Question

if d varies directly as t ,and if d=4 when t=9 , find d when t=21.​

Answer 1

• d=Kt (1)

1. put value of d and t
2. now, 4=9K
3. or, K=4/9
4. now put k=4/9 in (1)
5. so we get, [d=4t/9] (2)
6. now put value of t in (2)
7. d=4×9/9
8. or [d=4]
9. Hence the values of d are [d=4t/9] and [d=4]

Answer 2

Answer:

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Step-by-step explanation:

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