Wouldn't it be 4 because the question says 4 marbles are left over each time.
Step-by-step explanation:
CP of all his books = $200
profit = 10%
SP = CP ( 100 + gain% / 100 )
after inserting the values we got,
→ 200 ( 110/100 )
→ 2 × 110
→ 220
therefore, Selling Price of all the books are $220.
hope this answer helps you dear...take care! and may u have a great day ahead!
8.3,4.5,6.2,9.6,4.3,11.2,5.9,9.7,10.5
Mean:
To find mean you do the same as you would to find an average. Add up all of the numbers and divide by how many numbers are there. So,
8.3 + 4.5 + 6.2 + 9.6 + 4.3 + 11.2 + 5.9 + 9.7 + 10.5 = 70.2
Then divide by 9 since you have 9 numbers.
70.2 / 9 = 7.8
Median:
To find median you set up the data from least to greatest and cross out one number from each side until you are left with one number as the middle number.
4.3, 4.5, 5.9, 6.2, 8.3, 9.6, 9.7, 10.5, 11.2
4.5, 5.9, 6.2, 8.3, 9.6, 9.7, 10.5
5.9, 6.2, 8.3, 9.6, 9.7
6.2, 8.3, 9.6
= 8.3
Mode:
Mode is the most, meaning the number that appears the most in your set of data. In this case there is no mode because in your set there is no number that occurs more than once.
Hope this helps!
Answer:
b
Step-by-step explanation:
Answer: 60 miles per hour
Step-by-step explanation:
The right angle triangle formed is shown in the attached photo.
Let the first truck be truck A and the second truck be truck B
At noon, truck A moved from Prescott, AZ at a speed of 40 miles per hour. It travelled for one hour before truck A moved.
Distance = speed × time.
This means that distance moved by truck A in one hour is 40 × 1 = 40 miles. So at 1 pm, truck A had moved 40 miles. At 2pm, truck A would have moved another 40 miles because it's another one hour and the speed is still 40 miles per hour. Total distance moved by truck A at 2pm = 40 + 40 = 80 miles
At 1 pm, truck B moved for one hour at a speed of 60 miles per hour.
Distance moved by truck B = 60 × 1 = 60 miles.
So at 2pm, truck be has moved 60 miles.
To determine the distance,x between them at 2pm, we will find the hypotenuse of the triangle.
x^2 = √(80^2 + 60^2)
x = 100 miles
So at 2pm, they are already 100 miles apart.
So at 1pm, they were 40 miles apart and 1 hour later, at 2pm, they were 100 miles apart. Therefore, the distance increased by 60 miles per hour at 2pm