Answer:
x = -10
Step-by-step explanation:
y = 2x + 5
-15 = 2x + 5
-20 = 2x
-10 = x
Answer:
C
Step-by-step explanation:
Assuming the triangles are similar then the ratios of corresponding sides are equal, that is
= 
( cross- multiply )
2.4x = 13.44 ( divide both sides by 2.4 )
x = 5.6 → C
The equation of a line is given by:
y - y1 = m ( x - x1 )
You are given m = -3
And the point (-2 , 4)
Sub these values into the equation,
y - 4 = -3 ( x - (-2))
y - 4 = -3 ( x + 2 )
y - 4 = -3x - 6
y = -3x - 2
Hope this helped! Ask me if there's any part of the working you don't understand :)
Q1. The answer is 53.33
<span>The initial </span>number is 100%. So, make a proportion:
If 8 is 15%, what number is 100%?
8 : 15% = x : 100%
15% * x = 8 * 100%
x = 8 * 100% / 15% = 53.33
Q2. The answer is 2.8425
The initial number 18.95 and it is 100%. How much is its 15%? Make a proportion:
If 18.95 is 100%, what number is 15% of it?
18.95 : 100% = x : 15%
x * 100% = 18.95 * 15%
x = 18.95 * 15% / 100% = 2.8425
Q3. The answer is 509.375%
The initial number is 64 and it is 100%. So, what percent is 326? Make a proportion:
If 64 is 100%, 326 is what percent?
64 : 100% = 326 : x
x * 64 = 326 * 100%
x = 326 * 100% / 64 = 509.375%
Q4. The answer is 400.
The initial number is 100%. Make a proportion:
If 40 is 10%, what number is 100%?
40 : 10% = x : 100%
x * 10% = 40 * 100%
x = 40 * 100% / 10%
x = 400
Ok well, not technically yes, but jk's midpoint is (1,5) and ln is (5,3). So they're not the same. In this case in my opinion, it's no.
