Is renting a car
company A charges $120 plus 25 dollars per day
company B charges 45 dollars per day
at how many days will the costs be equal
120+25x
x=days
45x
120+25x=45x
subtract 25x from btoh sdies
120=20x
divide both sdie sb 20
6=x
the answer is 6 days
The number 8 is in Ten thousand space
Answer:

Step-by-step explanation:


Answer:
range = 7.87
X = 62.12, X²= 164.3516
mean = 1.2424
variance = 1.779
standard deviation = 1.33379
coefficient of variation = 107.3559%
Step-by-step explanation:
a.) The range =
highest number - lowest number
= 7.89 - 0.02
= 7.87
b.) from the attachment I solved for X and X²
∑X = 62.12
∑X² = 164.3516
c.)
the mean = ∑x/n
n = 50
= 62.12/50
= 1.2424
variance =
σ² = [∑x²-(∑x)²/n] / n-1
= [164.3516 - (62.12)²/50] / 50-1
= 164.3516 - 77.17788/49
= 87.173712/49
= 1.779
standard deviation = √σ
= √1.779
= 1.33379
d. coefficient of variation
= σ/mean * 100
= 1.33379/1.2424 * 100
= 107.3559
This number tells us that the the standard deviation of the time to failure is larger than the average time. option 3 is the correc4 answer here
Yes i could. The multiplication process will even be more simple since it only involve small number.
For Example:
1234
5
_______x
4 x 5 20
5 x 30 150
5 x 200 1000
5 x 1000 5000
________+
6170