Hi, I'm having trouble with this one problem. I've been struggling to do it for hours! Ok maybe mins, but I still can't get the right answer. The altitude of a triangle is increasing at a rate of 3 centimeters/minute while the area of the triangle is increasing at a rate of 3.5 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 9.5 centimeters and the area is 99 square centimeters? The answer I got was 7/3.