Slope is -12 and y-intercept is 3
It has a ratio of 1:4, meaning for every x, you'd get 4 from your y
Answer:
0,458$
Step-by-step explanation:
<span>Answer:
The multiplication factor of increase should be inverse of the multiplication factor of decrease.
e.g. Say you have a number 100.
You increase it by 25%. The multiplication factor is 5/4 i.e. when you multiply 100 by 5/4, you get 100*5/4 = 125. This is 25% more than 100.
Now you want to decrease it by a certain % such that you get 100 back.
Basically, 100*5/4 * x = 100
So x = 4/5 (inverse of 5/4)
Hence, you decrease by 20% (the multiplication factor of 20% is 4/5)
or
Use this formula: cumulative % change = a + b + ab/100
You want the cumulative change to be 0.
a + b + ab/100 = 0
If you know that you are increasing by 25% and want to find the % by which you should decrease to get the same number,
25 + b + 25b/100 = 0
5b/4 = -25
b = -20
So you need to decrease (hence you get the -ve sign) by 20%.</span>
Answer:
C. 2.25
Step-by-step explanation:
The following information is missing: <em>J is at (-3, 4). K is at (4,-2).
</em>
The x value for point L such that JL and KL form a 3:1 ratio is obtained as follows:
where ratio m:n givesfraction m/(m+n), run is the distance over x-axis between J and K, and xJ is the x-coordinate of J.
- ratio 3:1 means: m/(m+n) = 3/(3+1) = 3/4
Replacing into the equation:
m/(m+n)*run + xJ = 3/4*7 + (-3) = 2.25
