Answer:
32.2033898 % decrease
Step-by-step explanation:
To find the percent decrease, take the original amount and subtract the new amount
59-40 = 19
Divide by the original amount
19/59 =.322033898
Change to a percent
32.2033898 % decrease
There are 40 black and 20 blue so if you divide by 20 the ratio is 2:1
<h3>
Answer: (3, -1)</h3>
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Explanation:
The midpoint formula is 
This basically says to add the corresponding coordinates and divide by 2.
The given points (2,5) and (4,-7) have x coordinates of 2 and 4. They add to 2+4 = 6, and then that result cuts in half to 6/2 = 3. The x coordinate of the midpoint is 3.
The y coordinate of the midpoint is y = -1 since adding the y coordinates of the given points leads to 5+(-7) = -2 which cuts in half to -1.
So overall the midpoint is located at (3, -1)
Answer:
the question is cut in half
X - 15 + 30 - 12 = 18;
Then x - 15 + 18 = 18;
x + 3 = 18;
x = $15 ( money has Ming-Li to begin with ).