We have that 100 is a fix amount and if x describes the additional charges per hour we have that the equations is 100 + 35x. The answer is y = 100 + 35x
So the first thing you would want to do is rewrite the equation like so.
−x+4y=−3;−5x−4y=−15
once you done that you'll have to think about what variable are you trying to get be itself which in this case it'll be x. So now you'll be solving this equation.
−x+4y=−3
next you'll add -4y to both sides
Once you done so you should have this written down
-x over -1 = 4y- 3 over -1
divide -1 to both sides and you should end up with x= 4y+3
Now you have to substitute 4y+3 for x in -5x-4y=-15
So it should look like this now
−5(4y+3)−4y=−15
The next step is to simplify both sides with the following equation
−24y−15=−15
After simplifying add 15 to both sides, It then should look like this
−24y=0
Divide -24 to both sides and your answer should be this
y=0
hope this helps :)
750-320= 430
(430 are not students)
430/750= 0.5733333
To make it a percentage you move the decimal point 2 places to the left so it would be 57.3%
(I hope you understand I’m very bad at explaining)
15) 6.1
17) 0.91
19) 86.96
20) I'm not sure,but I think is 82.1%
9514 1404 393
Answer:
see attached
Step-by-step explanation:
A graphing calculator is useful for this.
The region of interest is below the parabola and above the line.