OpenStudy (anonymous):

help.... x varies directly as y, and x = 153 when y = 9. Find x when y = 13. 106 157 221

3 years ago
OpenStudy (nurali):

Since, x varies directly as y, then for some k, x = ky. We are given x = 153, when y = 9, so let's plug those in and see what k is. 153 = 9k 17 = k So, our equation is x = 17y Now we can find the answer when y = 13.... x = 17(13) x = 221

3 years ago
OpenStudy (anonymous):

ok thankx.....

3 years ago
OpenStudy (nurali):

My Pleasure.

3 years ago