Answer:
C I think
Step-by-step explanation:
Answer: A. divided the difference of the two quantities by the sum of the two quantities.
===================================================
Explanation:
The difference of the quantities is 20-15 = 5
The sum of the quantities is 20+15 = 35
Dividing those results leads to 5/35 = 0.142857 which rounds to 0.1429
That converts to 14.29%
This is likely the path Adam took. This path is incorrect. The correct steps are shown below
---------------------
Difference = 20-15 = 5
Divide the difference over the original quantity
5/20 = 1/4 = 0.25 = 25%
We have a 25% decrease because the new quantity (15) is smaller than the old quantity (20)
----------------------
Here's another way to approach the problem
A = old value = 20
B = new value = 15
C = percent change
C = [ (B-A)/A ] * 100%
C = [ (15-20)/20 ] * 100%
C = (-5/20)*100%
C = -0.25*100%
C = -25%
The negative C value means we have a negative percent change, ie we have a percent decrease. So this is another way to get a 25% decrease.
F is 198.374 hoped i helped
Answer:
3( 73/84 )left over
Step-by-step explanation:
She had 6 gallons in total
2/3+1/4+1/2+5/7=179/84 = 2 ( 11/84)
6/1-179/84 = 325/84 = 3(73/84)
She used 179/84
She have left 325/84
179/84 + 325/84 = 6
With mixed numbers:
2 11/84
3 73/84
2+3=5 11/84+73/84= 84/84 =1
5+1=6
