Answer:
Step-by-step explanation:
7+7x
Answer: 60miles/hours
Step-by-step explanation:
From the question, a bus travels the 240 miles from Boston to New York and the bus departs at 11:00 a.m. and arrives in New York at 3:00 p.m. The time taken by the bus is (3:00pm - 11:00am) = 4 hours.
Average speed = Distance/Time
Average speed =240miles/4 hours
Average speed= 60miles/hours
The the average speed of this bus is 60miles/hour.
To find the median, we must list our numbers from least to greatest.
35, 73, 77, 84, 85, 115.
Now that we've done that, to find the median, cross out the smallest number with the largest number.
35, 73, 77, 84, 85, 115.
73, 77, 84, 85.
Keep doing this until you can no longer do so.
77, 84.
Uh oh, it seems we have no middle number.
Since we are only left with 77 and 84, average the two numbers.
To find the average, add the sum of the numbers and divide by how many numbers there were added.
77 + 84 = 161.
Since we summed two numbers, divide by 2.
161/2 = 80.5
Your median is 80.5.
I hope this helps!
Answer:
The required equation is .
Step-by-step explanation:
If a quadratic equation is , then the quadratic formula is
The given quadratic equation is
Here, a=1, b=-9 and c=-20.
Substitute a=1, b=-9 and c=-20 in the above quadratic formula.
Therefore the required equation is .
Answer:
The total number of ways in which three winners can come in is 990 ways.
Step-by-step explanation:
It is provides that the number of automobiles entering the race is: <em>n</em> = 11.
It is also provided that there were no ties.
There are supposed to be three winners for the race.
- The number of ways the first winner can come in is: 11 ways.
- The number of ways the second winner can come in is: 10 ways.
- The number of ways the third winner can come in is: 9 ways.
Compute the total number of ways in which three winners can come in as follows:
Number of ways in which the first three finishers come in is
Thus, the total number of ways in which three winners can come in is 990 ways.