Jackie wants to keep track of his time training for his karate competition. In his workouts, he runs for 30 minutes, then he does 3 extra minutes of karate training each day. Write a function to represent Jackie's total time training over x days.
f(x)=3x+30
f(x)=30x+3
f(x)=30−3x
f(x)=3−30x
1 answer
f(x) = 3x + 30