Question

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

Answer 1

The answer is 16 because in first statement between 4 and 9 there is difference
5 . Therefore answer is 16

Answer 2

Solution:

Here, T is increasing 3 times (i.e 3*9=21)

so, d also increase 3 Times,

so d= 3*4= 12

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Hope it helps☺

#Amrit⭐