Work out the mean for the number and answer as a fraction
1 answer:
Answer: 4 and 1/4
Step-by-step explanation: The mean of a data set is equal to the sum of the set of numbers divided by how many numbers are in the set.
So to find the mean of the data set shown here, let's begin by adding the numbers.
34 will be divided by how many numbers are in the set which is 8.
34 ÷ 8 = 4.25
To write 4.25 as a fraction, we can first write 4.25 as a fraction with 1 in the denominator.
Now, we can multiply 4.25/1 x 100/100 in order to remove the 2 decimal places. Once we multiply the numerator and denominator by 100/100, we get the fraction 425/100.
Now, we can reduce 425/100 by dividing both the numerator and denominator by the greatest common factor of 425 and 100 which is 25.
425 ÷ 25 = 17
100 ÷ 25 = 4
17/4 can be written as the mixed number 4 and 1/4.
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Given :
A credit card company requires that its customers choose a 3 digit.
Each digit should be chosen from 0, 1, 2, 3, 4, 5, 6, 7, 8 or 9.
So there are 10 possibilities for each digit.
To Find :
How many different three digit codes are there.
Solution :
We know, possibility of choosing each digit is 10.
So, total number of three digit codes are :
Therefore, their are 1000 different three digit codes.
Hence, this is the required solution.
Answer:
at x = ,
= -3.5
Step-by-step explanation:
The given equation is
Now, substitute the value of x = in the above equation.
The given equation simplifies to,
now,
So, the equation become
-3(2) + 2 + (1/2) =
= -3.5
So, at x = ,
= -3.5