X: the unit digit
y: the tens digit
The unit digit is twice the tens digit so:
x=2y
The two digit number:
10y+x
The two digit number doubled:
2(10y+x)
The reversed number:
10x+y
So:
2(10y+x)=10x+y+12
substitute x for 2y
2(10y+2y)=10(2y)+y+12
24y=21y + 12
3y=12
y=4
x=2y=2*4=8
So the number is 48.
The x-intercept is the place where y = 0 and the y-intercept is the point where x = 0. Using this information, we can substitute 0 in for x and y to find the intercepts.
x-intercepts (where y = 0):
Here we can apply the Zero Product Property to find and separately.
AND
The x-intercepts are located at (0, 0) and (2, 0).
y-intercept (where x = 0):
The y-intercept is located at (0, 0).
The answer is 0.22 and its repeating
Answer:
x = 9
Step-by-step explanation:
Step 1: Look at graph
You can see that both ∠B's are the same. Therefore, both side lengths AD and CD are the same
Step 2: Set equations equal to each other
3x = 2x + 9
Step 3: Solve
x = 9
And we have our answer!