Martin is on the boardwalk at the beach. His two favorite rides there are the Ferris wheel and the roller coaster. If he rides them each once, it takes 14 minutes total. Today, however, he rides the Ferris wheel 6 times and the roller coaster 9 times, which means he's riding those attractions for exactly an hour and a half. This system of equations can be used to represent the situation:
x+y=14
6x+9y=90
Which statement is correct?
A. In the system of equations, x represents the amount of time, in minutes, it takes to ride the Ferris wheel once; and y represents the amount of time, in minutes, it takes to ride the roller coaster once.
B. In the system of equations, x represents the amount of time, in minutes, that Martin spends riding the Ferris wheel today; and y represents the amount of time, in minutes, he spends riding the roller coaster today.
C. In the system of equations, x represents the amount of time, in minutes, that Martin spends riding the roller coaster today; and y represents the amount of time, in minutes, he spends riding the Ferris wheel today.
D. In the system of equations, x represents the amount of time, in minutes, it takes to ride the roller coaster once; and y represents the amount of time, in minutes, it takes to ride the Ferris wheel once.
