Answer:
219
Step-by-step explanation:
a is the number needed to add from the first to the second which is 4(must be constant)
b is the term zero means 15-a which is 15-4=11
Answer:
ok
Step-by-step explanation:
You see, if it's typed, it's not hand-written. But if he types 24 wpm, it should take him about 20 minutes to do it.
Train 1 = (x) = 357.1 mph
Train 2= (x + 5.9) = 363 mph