Answer:
After 12.2 miles
Step-by-step explanation:
You can check this by graphing y = 0.85+16.75 and y = 0.40 + 22.25 and looking for the solution (the point where they intersect).
You can also use the elimination or substitution method.
let x = blue cars
so 7x = red cars
x +7x = 56
8x = 56
x = 56/8 =7 blue cars
7*7 =49 red cars
49-7 =42 more red cars
-6r+5
x = 12
Becuase 6/12 = 2 and 9 + 2 = 11
12
