Answer:
-66
Step-by-step explanation:
-4n+6
-72+6
-66
might not be right thk
55 % I think just subtract 100%-45%
3x times 2x+3xy-2y times 2x-2y times y
6xsquared+3xy-4xy-2ysquared
6xsquared-xy-2ysquared
Answer:
25 times
Step-by-step explanation:
To find how many times he visited, plug in 85 as y and solve for x:
y = 3x + 10
85 = 3x + 10
75 = 3x
25 = x
So, Carlos visited the gym 25 times
Answer: First option.
Step-by-step explanation:
The equation of the line in Slope-Intercept form is:
![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
Where "m" is the slope of the line and "b" is the y-intercept
We need to write each equation in Slope-Intercept form:
First equation
![3y + 12 = 6x\\\\3y=6x-12\\\\y=2x-4](https://tex.z-dn.net/?f=3y%20%2B%2012%20%3D%206x%5C%5C%5C%5C3y%3D6x-12%5C%5C%5C%5Cy%3D2x-4)
Second equation
![2y = 4x + b \\\\y=2x+\frac{b}{2}](https://tex.z-dn.net/?f=2y%20%3D%204x%20%2B%20b%20%5C%5C%5C%5Cy%3D2x%2B%5Cfrac%7Bb%7D%7B2%7D)
Since, by definition, a system of linear equations has infinitely many solutions when the lines are the same, we can say that:
![y=y\\\\2x-4=2x+\frac{b}{2}](https://tex.z-dn.net/?f=y%3Dy%5C%5C%5C%5C2x-4%3D2x%2B%5Cfrac%7Bb%7D%7B2%7D)
Then, solving for "b", we get:
![-4=\frac{b}{2}\\\\(-4)(2)=b\\\\b=-8](https://tex.z-dn.net/?f=-4%3D%5Cfrac%7Bb%7D%7B2%7D%5C%5C%5C%5C%28-4%29%282%29%3Db%5C%5C%5C%5Cb%3D-8)