Answer:
5.5
Step-by-step explanation:
8.25/3=2.75
2.75 times 2 is 5.5
Answer:
$0.64 per book
Step-by-step explanation:
Answer:
(7y-3x)2
Step-by-step explanation:
It's the same thing but backwards
I hope this helps
Answer:C
Step-by-step explanation:
Note that the 2nd equation can be re-written as y=8x-10.
According to the second equation, y=x^2+12x+30.
Equate these two equations to eliminate y:
8x-10 = x^2+12x+30
Group all terms together on the right side. To do this, add -8x+10 to both sides. Then 0 = x^2 +4x +40. You must now solve this quadratic equation for x, if possible. I found that this equation has NO REAL SOLUTIONS, so we must conclude that the given system of equations has NO REAL SOLUTIONS.
If you have a graphing calculator, please graph 8x-10 and x^2+12x+30 on the same screen. You will see two separate graphs that do NOT intersect. This is another way in which to see / conclude that there is NO REAL SOLUTION to this system of equations.