Find the value of y for a given value of x, if y varies directly with x. If y = 240 when x = 48, what is y when x = 46? Answer –230 9.2 230 –9.2
Is this a test question?
What's with the a.c.b.d format?
the ratio of y to x is 5 to 1 so for each value of x y=5x
i do not know....@Schrodinger ....
Lol. Well you're posting this like a test question or like a homework problem. That's why i'm asking.
Its not a test question , but do you know how to answer it?
Yeah. A direct variation is like this: y = kx, in this situation, 240 = k(48) for the first one. In this situation, divide by 240 by 48 in order to find what k is. This should remain constant while x and y might change.
That said, plug it in for the same thing. Once you find the value of k, plug it into y = kx (with x being 46 this time rather than 48.) That should be your answer.)
*divide 240 by 48, not "divide by 240 by 48".
Yep that's correct! :)
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