gloverfamily199
gloverfamily199 gloverfamily199
  • 14-11-2018
  • Mathematics
contestada

Suppose f(x) varies inversely with x and f(x)=3 when x=10.

what is the value of f(x) when x=15?

0.3
2
4.5
30

Respuesta :

sebastianbowler
sebastianbowler sebastianbowler
  • 12-05-2020

Answer:

2

Step-by-step explanation:

i just took the test and both the answers that this guy posted where incorrect, 2 was the right answer

Answer Link
ktaylor207277
ktaylor207277 ktaylor207277
  • 19-04-2021

Answer:

The answer to this question would be: C=4.5

Assuming the function consist of f(x)= ax function, then for x=10 and f(x)=3 you can determine the variable a

f(x)= ax

3= a*10

a= 3/10= 0.3

Then the function must be f(x)= 0.3x

For x= 15, the f(x) would be:

f(x)= 0.3x

f(15)= 0.3 * 15= 4.5

Step-by-step explanation:

Answer Link

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