Answer:
x=4
Step-by-step explanation:
You put 9x+6y=78 over 3x-6y=-30. Then, you are going to add the two equations. So, you are going to do 9x+3x, 6y-6y (since the second 6 is negative, it ends up subtracting), and 78-30. You will end up canceling the 6y's, and end up with 12x=48. Then, you will divide 48 by 12, and get x=4. Hope this helped:)
Answer:
50 teachers
Step-by-step explanation:
step 1
Find the number of teachers for a ratio of 1:12
1/12=x/2,400
x=2,400/12=200 teachers
step 2
Find the number of teachers for a ratio of 5:48
5/48=x/2,400
x=2,400*5/48=250 teachers
step 3
Find the difference
250-200=50 teachers
Do the vertical line test and draw a straight line.
Solution: C represents a function
Divide 6 by 1/3. I don't know what you are asking.
