A doctor has 53 ccs of a 40% solution of a pain killer. How much sterilized water should be added to get a 27% solution?

35.775

Step-by-step explanation:

So, 53 is the amount of ccs that makes a 40% solution.

How can we find the ccs of 27% solution?

Well, we should first find teh amount of ccs per 1%.

To do this, divide 53 by 40:

53/40

=

1.325

Now multiply this by 27 to get the amount of ccs for 27%:

27*1.325

=

35.775

Hope this helps! :)

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %