12(3x+4)-5(2x-6)=6x-22
36x + 48 - 10x + 30 = 6x - 22
26x + 48 + 30 = 6x - 22
26x + 70 = 6x - 22
20x + 70 = -22
20x = -92
x = -4.6
Answer:
36 km/h
Step-by-step explanation:
You can estimate that 5x4257 is 20,000
to check 5x4257=21,375 which is close to 20,000
Hey, It looks like you're in Algebra and I'm here to give the best solution I can!
To write the equation, you are going to use the Standard Form. Standard Form is one way of solving this problem, and it is used to find the x,and y-intercepts of a problem.
Standard Form can be written using the equation <span>ax+by=c
</span>In your problem, you will write the equation like so, with 'x' representing T-Shirts, and 'y' representing pants:
<span>
8x+5y=220</span>
Now, in order to find the x-intercept you need to substitute a 0 for the 'y' variable and solve the new equation, 8x=220.
I'm sure you know you need to divide both sides by 8 which will give you the answer x=27.5.
Now, in order to find 'y' you would substitute a 0 for the 'x' variable which will give you an equation that should look like 5y=220.
Then, divided both sides by 5 to get your y-intercept.
y=44
Finally,you know that each T-Shirt (x) is $27.50, and each pair of pants(y)costs $44
-I hope this helped you, Sincerely, Auhrevo!
Its the top one b
I think that the only way to find the answer is to evaluate points into the different equations
