Answer:
y= -3/4x-1
Step-by-step explanation:
The points are (8,-7) and (0,-1)
The slope is the change in Y over the change in X, so you have -3/4 as your slope.
Then, you have y=-3/4x+b
You substitute either (8,-7) or (0,-1) for X and Y in the equation, and solve it, giving you -1 for B
Step-by-step explanation:
Hello there!
Solve for x:
-3x(x-8)-7x=12
-3x^2+24x-7x=12
-3x^2+17x+12=0
Can you factor it further?Feel free to ask questions in the comments.
:)
Number of students in Math136 = 480
We are given that the number of students in Math136 is 20% more than the number of students in Math123. Let the number of students in Math123 be x. So we can set up the equation as:
Number of students in Math136 = 20% more than number of students in Math123
Number of students in Math136 = 20% more than x
480 = 20% more than x
480 = 20% of x + x
480 = 0.20x + x
480 = 1.20(x)
x = 480/1.20 = 400
This means, there are 400 students in Math123.