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grin007 [14]
3 years ago
14

If a is inversely proportional to x, a=15 when x=25 find the constant of variation, k

Mathematics
1 answer:
Rudik [331]3 years ago
7 0

Answer:

Step-by-step explanation:

"Inversely proportional to x" in this situation is represented by a = k/x.

Find k:

Let a = 15 and x = 25, then calculate k:

15 = k/25)

Multiplying both sides by 25 yields k = 15(25), or k = 3/5

                       3

and so a = -----------

                      5x

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