Which equation is perpendicular to the line 3x+y=10 and passes through the point(6,-5)?

A perpendicular line's slope is the opposite of a parallel line's slope, so it would be 1/3.

1/3 times 6 is two, and subtract 7 to get -5.

Therefore, -7 is the y-intercept. 

So, the equation would be y=1/3x-7, so the answer is D.