<span>If 75% of the students had taken 8 courses, 25% had not. Of these remaining 25%, 60% of them (or 60% of 25% = 15%) had taken 6 or 7 courses. Thus 90% (75% + 15%) of the students had taken 6, 7 or 8 courses.
Thus only 10% had taken less than 6 courses. I hope this helps.
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V = PI x r^2 x h/3
v = 3.14 x 4.5^2 x 12/3
v = 3.14 x 20.25 x 4
v = 254.34
Answer = 254 in^3
The slope is given as 1.
The Y-intercept is where the line crosses the Y axis when X is 0. This is also given by the point (0,5/6). X is 0 and Y is 5/6, so the Y-intercept is 5/6.
The equation of a line is given as y = mx +b where m is the slope and b is the y-intercept.
The equation is: y = x +5/6
