Answer:
.
Step-by-step explanation:
Answer:
31 over 3
Step-by-step explanation:
Answer:
for Lena
C = 3x C + 5x
for Patrick
C = 9x C = 10x
for total C = 12x + 15x
Step-by-step explanation:
So the equation to find the discriminant is √(b^2 - 4ac), with a = x^2 coefficient, b = x coefficient, and c = constant. Using our equation above, we can solve for it as such:

Since the discriminant is greater than zero and a perfect square, this means that there are 2 real, rational solutions to this polynomial.