This question can be rephrased as, "If (v+w+x+y+z)/5=20, then for what value of z does (v+w+x+y)/4=15?". Thus, z is "the missing number." Let's solve for v+w+x+y in both equations. In the first equation, v+w+x+y=(20)(5)-z=100-z. In the second equation, v+w+x+y=(15)(4)=60. So 100-z=60. z=40. That's it! The missing number is 40!
What is the missing number in the sequence is a Math question under the Sequences lesson. In this type of question, a line of numbers is listed with one or more numbers missing, so that the student has to work out what the number is.
Given only one number it is impossible to identify three missing numbers.
the missing number in the series 1,4,27.----.3125 is 81,35,729,256,115 .Please help to find the missing number.
The missing number is 5. They're the first five prime numbers.
using mental math to find the missing numbers. make 8 12345 _ _ _ _ 4 what are the missing numbers Make 6 0 _ _ _ 6 _ _ _ what are the missing numbers
The average of a set of numbers is defined as the sum of those numbers divided by the number of numbers. If the average is given, multiply that by number of items in the set including the missing number. Subtract the sum of given numbers from this quotient and the missing number is revealed.
The Answer is 26
The median is the middle number. If there is an odd number of numbers in the set, the median is the middle number, and the only way to find the missing number is if the median is the missing number. If there is an even number of numbers in the set, the median is the average of the two middle numbers, and the only way to find the missing number is if the median is one of those two numbers. If it is, you can take the median and the one of the two numbers you know. Use the formula (# +#)/2=median and solve.
31
23
Given the average,find the missing numbr in a set by following these steps: 1.Multiply the average by the number of items in the set. 2.Add the given numbers ni the set. 3.Find the difference of the product in step 1 and step2.
you find out missing numbers in addition by subtracting the numbers that are writen
The answer depends on what number is missing and what numbers are known!
What is the missing number in the sequence is a Math question under the Sequences lesson. In this type of question, a line of numbers is listed with one or more numbers missing, so that the student has to work out what the number is.
the missing number in the series 1,4,27.----.3125 is 81,35,729,256,115 .Please help to find the missing number.
Given only one number it is impossible to identify three missing numbers.
The [mean] average of 5 numbers is 25, so their total is 5 x 25 = 125 The [mean] average of 4 numbers is 25, so their total is 4 x 25 = 100 → the excluded number is 125 - 100 = 25. Alternatively, as the average doesn't change, the excluded number must be the average, ie 25.