Answer:
y=12
Step-by-step explanation:
y=2x ,so 2x=8x-x^2
x^2=8x-2x
x^2=6x
x^2/x=6x/x
x=6
y=2x ,2(6)
y=12
You have to take the 2 divided by 12. And 12 divided by 2 is 6. So the answer is 6
Step-by-step explanation:
We can set up an average equation in the form, where x is the last score in the fourth quarter:


She needs at least a 95 on the last quarter to average 90 in all four quarters.
Answer:
b
Step-by-step explanation:
To get an average of 70 on his test Paul needs to score at least 66 on his third test