Answer:
speed = distance/time
Step-by-step explanation:
The faster a sound wave travels, the more distance it will cover in the same period of time. If a sound wave were observed to travel a distance of 700 meters in 2 seconds, then the speed of the wave would be 350 m/s.
Answer:
The average velocity the entire trip was 43.25 mi/h
Step-by-step explanation:
In this case we have to calculate an average based on the miles traveled. First we have to calculate the total of miles traveled, then calculate the portion of the total travel of each and with this calculate the average speed during the trip. First the total miles traveled:
Now the percentages:
At 57 mi/h were 
At 44 mi/h were 
At 37.8 mi/h were 
Now multiplying the speed by the portion and summing them we can have the average velocity:
The average velocity the entire trip was 43.25 mi/h
Answer:
The red team is expected to win 6 fewer games than the blue team
Step-by-step explanation:
In this question, we are concerned with calculating the number of games the red team is expected to win less than what the blue team will win, given the probability of wining of each of the teams and the total number of games
To calculate the total number of games each team is expected to win, what we do is to multiply the probability of wining of each of the teams by the total number of games
For the red team , the probability of wining P(r) = 0.3
The total number of games expected to be won is mathematically equal to 0.3 × 120 = 36 games
For the blue team , the probability of wining P(b) = 0.35
The total number of games expected to be won is mathematically equal to 0.35 × 120 = 42 games
The number of games fewer that the red team is expected to win = number of games expected to be won by the blue team - number of games expected to be won by the red team = 42 games - 36 games = 6 games
X=-a/6
Because you need to isolate x
