24 single felled organisms there are to 30 minute periods in each hour which produces 2 organisms that is 12 periods and 12 multiplied by 2 is 24
X and y vary inversely means y is inversely proportional to x, this means:
y=k/x, where k is a constant.
We are given that when x=-4, y=7/2, we replace these values to find k.
7/2=k/-4
k= (-4*7)/2=-14
So we have y=-14/x
Therefore, when x=4, y=-14/4= -7/2
6 x 9 = 54
He has a total of 54 pages to grade.
54 - 12 = 42 pages
He still has to grade 42 pages.
Hope I helped!!
The survey sample includes residents of the neighboring city whose phone number is listed.