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Mathematics 21 Online
OpenStudy (anonymous):

If f(x) varies directly with x, and f(x) = 45 when x = 9, find the value of f(x) when x = 3.

OpenStudy (anonymous):

45 divided by 9 is what?

OpenStudy (anonymous):

5 right so f=5

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

and the secon one is 45 diveded by 3

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

so f=15

OpenStudy (anonymous):

yeah

OpenStudy (anonymous):

what grade r u in

OpenStudy (anonymous):

8th

OpenStudy (anonymous):

wow im in 7

OpenStudy (anonymous):

oh cool

OpenStudy (anonymous):

well your answer is -15

OpenStudy (anonymous):

could i please have a medal

OpenStudy (anonymous):

you click the best responce thing

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

thanks and i gave you one to

OpenStudy (anonymous):

ok

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