Use a proportion to answer the question in terms of y.
What number is 15% of y???????

Question

Use a proportion to answer the question in terms of y.
What number is 15% of y???????

tkhunny · Answer

$15$%$=\dfrac{15}{100} = \dfrac{Fred}{y}$

Solve for Fred?

anonymous · Answer

i need a number not a name

tkhunny · Answer

That is not correct.  You need a name.  You have no value for 'y'.  Why do you think Fred can be replaced by a number?  Read the problem statement carefully: "...in terms of y."

anonymous · Answer

then what number is 15% of y?

tkhunny · Answer

Use that proportion I gave you.  Solve for "Fred".  Trust me on this.

anonymous · Answer

We have only done this kind of math with numbers never with a name. So i don't know how I am suppose to do the math

tkhunny · Answer

Well, without a value for y, there will be no numbers, today.

Q: What difference does it make if it's a name or a number?
A: None, whatsoever.

Just solve for Fred.

Maybe you don't like Fred?  He's a little too glib?  Okay, fine...

$15$%$=\dfrac{15}{100} = \dfrac{x}{y}$

Solve for x.  Just solve for x.  Don't worry about the meaning of the result, just yet.  Just solve for x.