P = f*s
f +3s = 60
p = (60 -3s)*s = 3(20 -s)*s
This equation describes a parabola that opens downward. The roots of the equation are s=0 and s=20, so the axis of symmetry is s=(0+20)/2 = 10. That is, the vertex (maximum) will be found at s=10.
The second number is 10. The first number is 60-3*10 = 30.
The product is maximized when the first number is 30 and the second is 10.
I would solve for y on the top one and sub it into the bottom one.
y=-2x+8
(12/5, 16/5)
Answer:
B im guesssing
Step-by-step explanation:
not sure:/
Answer: A, C, E
Step-by-step explanation:
i just answered it and got it correct
Answer: 50
Step-by-step explanation: 100 / 2 is 50