Probability
1/4
3/4
1/2
5/8??

1/2

Step-by-step explanation:

There are exactly 6 shaded regions; for every shaded region, there is also an unshaded region -- making this value 6 as well.

There are 12 possible outcomes, and 6 events

To determine probability, we divide the number of events by the number of possible outcomes, like this:

.50 = 50% or 1/2 chance.

#SpreadTheLove

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.