find the mean, median, and mode of the data set round to the nearest tenth 15, 1 , 4, 4, 8, 7, 15, 4, 5
Dmitriy789 [7]

<h3>Answer: mean = 7.5, median = 5, mode = 4</h3>
You didn't ask a question. That's just a statement.
Answer:
-35.7
Step-by-step explanation:
1. Plug in a and b to the equation:
7(-3.9)+2(-4.2)
2. Evaluate: -35.7
Answer: $203
Step-by-step explanation:
e=electric bill
480-e=277
480-277=e
e=$203
Answer:
20 miles per hour
Step-by-step explanation:
Given that the train left for London, and after 9 hours later, a car traveling 80 miles per hour tried catching up to the train. After 3 hours, the car caught up
Which means that the car travelled the same distance in 3 hours as the train travelled in 9 + 3 = 12 hours
Let the distance be d
Given the speed of car is 80 miles per hour
We know that 

d = 240 miles
Now for the train Average speed = total distance / total time taken
Average speed of the train =
= 20 miles per hour