You first have to know the total number of responses: 82+76+42= 200 then you set up a proportion: %/100 = part/whole (and whichever thing you’re trying to solve for will be x) so for this problem: x/100 = 42/200 (x is what you’re solving for: you’re trying to find the percent of people that prefer strawberry ice cream out of the 200 people surveyed) then: cross multiply i like to start with the x first so: 200 • x = 200x and 42 • 100 = 4200 then finally put these together to make an algebraic equation: 200x = 4200 solve from there: 4200 divided by 200 (because you want x by itself) is 21 so you’re left with: x = 21 now remember how we used x to represent the percent out of 100 on our proportion? this means that 21% of people (out of the 200) prefer strawberry ice cream hope this helps!
As we know that x=x0*[1/2]n putting the values 375=3000*[1/2]n 375/3000=<span>[1/2]n </span>1/8=<span>[1/2]n simplify [1/2]3=</span><span>[1/2]n by cancelling them so n=3 so it will take 3 minutes hope it helps</span>
