The probability that Victor selects a code that has four even digits is approximately 0.0238 or 1/42.
To solve this problem, we can use the permutation formula to determine the total number of possible codes that Victor can choose. Since he can only use each digit once, the number of permutations of 10 digits taken 4 at a time is:
P(10,4) = 10! / (10-4)! = 10 x 9 x 8 x 7 = 5,040
Next, we need to determine how many codes have four even digits. There are five even digits (0, 2, 4, 6, and 8), so we need to choose four of them and arrange them in all possible ways. The number of permutations of 5 even digits taken 4 at a time is:
P(5,4) = 5! / (5-4)! = 5 x 4 x 3 x 2 = 120
Therefore, the probability that Victor selects a code with four even digits is:
P = (number of codes with four even digits) / (total number of possible codes)
= P(5,4) / P(10,4)
= 120 / 5,040
= 1 / 42
≈ 0.0238
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Jeff has 32,400 pairs of sunglasses. He wants to distribute them evenly among X people, where X is
a positive integer between 10 and 180, inclusive. For how many X is this possible?
Answer:
To distribute 32,400 pairs of sunglasses evenly among X people, we need to find the positive integer values of X that divide 32,400 without any remainder.
To determine the values of X for which this is possible, we can iterate through the positive integers from 10 to 180 and check if 32,400 is divisible by each integer.
Let's calculate:
Number of possible values for X = 0
For each value of X from 10 to 180, we check if 32,400 is divisible by X using the modulo operator (%):
for X = 10:
32,400 % 10 = 0 (divisible)
for X = 11:
32,400 % 11 = 9 (not divisible)
for X = 12:
32,400 % 12 = 0 (divisible)
...
for X = 180:
32,400 % 180 = 0 (divisible)
We continue this process for all values of X from 10 to 180. If the remainder is 0, it means that 32,400 is divisible by X.
In this case, the number of possible values for X is the count of the integers from 10 to 180 where 32,400 is divisible without a remainder.
After performing the calculations, we find that 32,400 is divisible by the following values of X: 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 90, 96, 100, 108, 120, 128, 135, 144, 150, 160, 180.
Therefore, there are 33 possible values for X between 10 and 180 (inclusive) for which it is possible to distribute 32,400 pairs of sunglasses evenly.
Hope it helps!
2014 used honda accord sedan lx with 143k miles for 12k a scam in today's economy? how much longer would it last?
It could also discuss the importance of conducting a test drive and negotiating the price based on any issues found during the inspection.
Given that the 2014 used Honda Accord Sedan LX has 143k miles and costs $12k, the asking price is reasonable.
However, whether or not it is a scam depends on the condition of the car.
If the car is in good condition with no major mechanical issues,
then the price is reasonable for its age and mileage.In terms of how long the car would last, it depends on several factors such as how well the car was maintained and how it was driven.
With proper maintenance, the car could last for several more years and miles. It is recommended to have a trusted mechanic inspect the car before making a purchase to ensure that it is in good condition.
A 250-word response may include more details about the factors to consider when purchasing a used car, such as the car's history, the availability of spare parts, and the reliability of the manufacturer.
It could also discuss the importance of conducting a test drive and negotiating the price based on any issues found during the inspection.
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