Assume that y varies inversely as x. If y = -6 when x = -2, find y when x = 5.

Question

terenzreignz · Answer

Hi :)
When two values vary inversely, it means their product will be the same, no matter what.
So, when y = -6, x = -2

What's the product of x and y then?

anonymous · Answer

-12 ?

anonymous · Answer

lol sorry i meant just postive 12

terenzreignz · Answer

Good :)
Now, remember, I said, that if two values vary inversely, their product will always be the same?
Means xy = 12
no matter what.

So here, you're given now x = 5
5y = 12
It's just a matter of solving for y now :)

anonymous · Answer

-10

terenzreignz · Answer

Unlikely :P
Product of 5 and -10 is not 12, but -50 :P

terenzreignz · Answer

$$\Large 5y = 12$$
Don't hesitate to have fraction values, they're quite acceptable :)

anonymous · Answer

y = 2.4?

terenzreignz · Answer

Yup :)
Or $$\Large y = \frac{12}5$$
I personally prefer fractions, but you're correct !

Good job :)

anonymous · Answer

tnx @terenzreignz

terenzreignz · Answer

Welcome to Openstudy ^_^

You can call me Teejay (or TJ) if you intend on sticking around :)
Why don't you see if you can help out?

anonymous · Answer

:o hmmm actually this is my second account .. i still didnt recieve my verification email.. and when i created anew one it still not in my mail

anonymous · Answer

i have no idea why..