Answer:
x = 30
Step-by-step explanation:
0.6x - 8 = 19 - 0.3x
Add 0.3x to both sides;
0.9x - 8 = 19
Add 8 to both sides;
0.9x = 27
Divide both sides by 0.9
x = 30
Answer:
Median: 11
Range: 12
25th percentile: 9
75th percentile: 14
Interquartile range: 5
Step-by-step explanation:
✔️Median = the value that lies at the point where the vertical line divides the box into two = 11
✔️Range = max value - min value = 19 - 7 = 12
✔️25th percentile = Q1 = the value at the beginning of the edge of the rectangular box = 9
✔️75th percentile = Q3 = the value at the end of the edge of the box = 14
✔️ Interquartile range = Q3 - Q1 = 14 - 9 = 5
Answer:
Step-by-step explanation:
Let us first find the number of possible credit card numbers that can be formed with the numbers 0 - 9.
We want to form a 16 digit number out of 10 digits, so, we have:
There are 
numbers that can be formed.
There are only 100 million valid numbers (
). Let the number of valid numbers be n.
Therefore, the probability of picking a number that is valid is:
P(valid) = n / N
Move all terms not containing X to the right side of the inequality
Answer: X < -1
Hope this helps! :)
~Zane
