Answer:
1/2n+3=15
Step-by-step explanation:
the 1/2 is a fraction so 3 more than 1/2 times n is 1/2n+3=15
Answer:
540
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Answer:
Change 45 min to .75 hrs
Distance = speed * time
Train A's distance = 55(t+.75)
Train B's distance = 70t
The equation
D(t) = 70t + 55(t+.75)
