Answer:
5610
Step-by-step explanation:
unaffected people will be (100%-2.5\%-50.75%)=46.75% of 12000:
see below
9/10
To get as a fraction over 100, multiply the top and bottom by 10
9*10 90
------ = ------------
10*10 100
9/10 = 90/100
The decimal form for 9/10 is .9 and for 90/100 is .90
2x-xy=3
-xy=3-2x
y=3-2x/x
c. 35
32
1-.60=.4 is the probability for tails
80x .40=32
