B...................................
Answer:
4/9
Step-by-step explanation:
4 plus 3 plus 2 = 9 total amount of scraps, goes on the denominator.
there are 4 orange scraps which is your numerator.
so it is 4/9 or a 44% chance/probability in getting an orange scrap.
Katie is 6; Cathy is 18!
X- Katie’s age now and 3x -Cathys age now
In 6 years, Katie is 12 and Cathy is 24.
2 x (X+6) = 3x + 6
2x + 12 = 3x + 6
6 = x
The concentration of solution would be the amount of the molecule divided by the volume. In this case, the solution concentration is 36% and the volume is 4 quarts + 1 quarts= 5 quarts. You are asked the concentration before 1 quarts added. The alcohol content should be same for both solutions. The answer should be:
concentration = alcohol content/ volume
alcohol content =concentration * volume
alcohol content1 =alcohol content2
36% * 5 quarts = concentration2 * 4quarts
concentration2= 36% * 5 quarts / 4 quarts= 45%
Technically, you could go through and add every single integer between -102 and 104, but that is a lot of work.
However, there is a shortcut.
The opposite of -102 is 102, right? When you add two opposites together, they turn out to be 0. You can use this for every integer from -102 to 102.
Basically, you end up with 103 and 104 that are left.
Add them and you get 103+104=207.
207 is the answer.
