Answer:
I have given it step by step below.
Step-by-step explanation:
(i) Mean = sum of observations/total no. of observation
= 23 + 20 + 4 + 19 + 28 + 35 + 25 + 0 +1 + 30/ 10
= 185/10
= 18.5
(ii) additional 35 runs
New Mean
=previous total + 35/10 + 1 (the 1 gets added in denominator because of the additional observation)
= 185 + 35/11
= 220/11
= 20
Hope this helps you!
Answer:
40 miles.
Step-by-step explanation:
Given that the cost of renting a car in Hertz is $ 15 per day plus $ 0.50 for each mile traveled, while in Enterprise the cost is $ 25 per day plus $ 0.25 per mile traveled, to determine how many miles should be traveled to incur the same expenditure in both companies the following calculation must be made:
25 - 15 = 10
0.50 - 025 = 0.25
10 / 0.25 = 40
Therefore, to incur the same cost, 40 miles must be traveled, which is verified with the following calculation:
25 + 0.25 x 40 = 35
15 + 0.50 x 40 = 35
Answer:
IT IS ETHER A OR B BROBABLY
Step-by-step explanation:
(6,1) , (3,4)
slope = (4 - 1) / (3 - 6) = -3/3 = -1
y = mx + b
slope(m) = -1
use either of ur points....(6,1)...x = 6 and y = 1
now sub and find b, the y int
1 = -1(6) + b
1 = -6 + b
1 + 6 = b
7 = b
so ur equation is : y = -x + 7
