Answer:
sorry I wish I could help but I'm stupid
They do have the same absolute values.
|9| = 9
|-9| = 9
The greatest number is 28 people
Equation of a line is given by y = mx + c; where m is the slope.
5x + 2y = 9
2y = 9 - 5x
y = -5/2 x + 9/2
Therefore, slope = -5/2
You can solve this question using two different methods. One is obviously a hit and trial method in which you keep guessing a number which gives the same amount of total cost. Second is forming two different equations and then solving them using simultaneous methods learnt.
The correct answer is 75 miles. I used the hit and trial method. You can see 20 + 75 * 0.35 = 46.25 and similarly 35 + 75 * 0.15 = 46.25. Hence the same cost.
