Answer:
The answer is D. 1/5
Step-by-step explanation:
Let´s write equation for each of the senteneces in the question:
- Alice saved the same fraction for her take-home pay (THP) each month => Savings_month = X*THP, where "X" is the fraction of the THP she saves.
- She saved 3 times the amount of money she didn´t save by the end of 12 months => Savings_12months = 12*X*THP = 3*Y*THP, where "Y" is the fraction of the money she did not save
- We can also conclude that the THP is the sum of her savings and what she did not save => THP = X*THP + Y*THP
We have 2 equations:
THP is on both sides on both equations, that means we can divide the equation on both sides by THP to get rid of it and have easier to read equations:
- 12X = 3Y
- 1 = X + Y
From equation 1, solve for Y and we get the following:
Substitute Y in equation 2:
Solve for X:
We know that X is the fraction of THP Alice is saving, therefore the answer is D.
Without a diagram, one must make certain assumptions about this problem. If and only if these three angles are the interior angles of a triangle, then their sum must be 180 degrees, so that 18x+12 + 6y + 3x+4y = 180. Unfortunately, this is a single equation in 2 unknowns. Thus, we cannot solve for an explicit value for either x or y.
If there was a diagram, please share it; otherwise, describe the triangle in words as best you can.
Answer:
−2(3x+2)(x−5)
Step-by-step explanation:
−6x2+26x+20=
=−2(3x+2)(x−5)
I don't know where to begin.
The image is below your post, not above.
The image is just a bunch of lines.
There aren't any steps or examples.
This isn't college level.
Why
7,920 feet : 30 minutes
(×2)
15,840 feet : 1 hour
15,840 feet = 3 miles
3 miles : 1 hour
3 mph (3 miles per hour)