Answer:
Her mistake is on line 2, setting the equations equal to each other.
Step-by-step explanation:
It appears that she misunderstood the requirements of question: find the intersections of the graphs of the two equations. The first one is a quadratic equation, (mentally picture that as a parabola). The second equation is linear. (Mentally picture that as a straight line with a slope of -2) They should have 2 points of intersection. When she combined them, she created a new quadratic equation and solved to "find the zeroes" where the parabola intersects the x-axis.
Answer:
Your welcome
Step-by-step explanation:
$8160 the hours would be 480
$680 the hours would be 40
$35,360 the hours would be 2,080
$36,720 the hours would be 2,160
The amount of trash in tons that was already in the landfill originally (y-intercept)
The answer is A. h + 3s = 35 and 2h + s = 20