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Mathematics 20 Online
OpenStudy (anonymous):

The variables x and y vary directly. Use the given values to write an equation that relates x and y. x = 5, y = 25 okay so im not 100% sure how to do this

Vocaloid (vocaloid):

"vary directly" is the key phrase here this means that the equation will be y = kx, where k is a constant of variation so, we plug in x and y to figure out what k is

OpenStudy (plasmataco):

Basically wat @Vocaloid is trying to say is y=whatever times x

OpenStudy (anonymous):

ohhh okay

OpenStudy (plasmataco):

U sub y and x for the numbers given and you find the watever

OpenStudy (anonymous):

can you give me an example?

OpenStudy (plasmataco):

Say y Carey's directly to x where x is 10 and y is 100

OpenStudy (plasmataco):

Wtf what is wrong with my autocorrect?

OpenStudy (anonymous):

Bahhaha omg Carey's

OpenStudy (plasmataco):

Say y varies directly to x where x is 10 and y is 100

OpenStudy (plasmataco):

Hush...

OpenStudy (plasmataco):

Anyways u sub in for y=kx

OpenStudy (plasmataco):

100=k10

OpenStudy (plasmataco):

K turns in 10. So the equation is y=10x

OpenStudy (anonymous):

ohh okay so the answer would be 25=k5

OpenStudy (plasmataco):

Now solve for k

OpenStudy (anonymous):

Ahhh okay

OpenStudy (anonymous):

so its y=5x?

OpenStudy (plasmataco):

Yes and btw wat the f are Carly's?

OpenStudy (plasmataco):

I'm only 13

OpenStudy (anonymous):

Carly's? lmao

OpenStudy (plasmataco):

Must know

OpenStudy (anonymous):

omg the fact that a 13 year old does math better than me bahah i respect u lol

OpenStudy (anonymous):

idk what that is lol

OpenStudy (plasmataco):

I'm a stereotypical Asian. Count it as typical

OpenStudy (anonymous):

Omgg :P your hilarious

OpenStudy (plasmataco):

I'm serious

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