We have two equations that were solved by Nikki and Jonathon:
Equating the above two:
⇒ 1.3x + 1.6 = -2.7x + 3.2
⇒ 4x = 1.6
⇒ x = 0.4
Hence, substituting the value of x in one of the equations we get:
y = 1.3×0.4 + 1.6 = 2.12
So the solution is (0.4, 2.12)
Jonathon's solution was (0.4, 2.12) and Nikki's was (2.25, 0.5). Hence Jonathon gave the correct solution.
N represent the number of rides each of them took
entrance fee for both of them = 2x
Total cost of rides = 2n x 3.50 = 7n
The total cost is 44
2x + 7n = 44 (Answer E)
2x + 7n = 44
2(x + 3.5n) = 44 (Answer C)
