The answer would be 75 width
Answer:
I think Substitution
Step-by-step explanation:
Because x is already solved for in the second equation.
Not quite sure what the question being asked here is.
We evaluate b^2 - 4ac. If the answer is positive, then there are two real solutions. If it is zero, there is one real solution. If it is negative, there are 2 complex solutions. In this equation, a = 1, b = 5, c = 7. Now we plug in the numbers.
![5^{2}-4*1*7=1](https://tex.z-dn.net/?f=%205%5E%7B2%7D-4%2A1%2A7%3D1%20)
Because this answer is positive, there are two real solutions.
Answer:
Step-by-step explanation:
Name Number of minutes
Marcy 35
Tom 37
Jennifer 28
Darnel 31
total time= 35+37+28+31= 131 minutes= 2 hours 11 minutes