7.1 and 7.9
By inspection, the only two numbers between 40 and 50 that have a GCF of 7 are 42 and 49.Another way to work out this problem is to list the multiples of 7. They are:7, 14, 21, 28, 35, 42, 49, 56, ...The values between 40 and 50 are 42 and 49.
This list of numbers is the list of prime numbers. Following 11, the next two numbers in the list are 13 and 17.
Exploration task: Inserting rational numbers between two given rational numbers 1. Take any two rational numbers. 2. Add them. 3. Divide the result obtained by 2. 4. Observe the number obtained. Is the answer a rational number? Is it between two given numbers? Brainstorming: How many rational numbers can be inserted between two rational numbers?
There are infinite numbers lying between 1/3 and 5/7. 1/2, 2/3, 5/8, etc. The list goes on and on.
At least two of the numbers must be 7 since the mode is 7.The mode is number which occurs most.However, the third number cannot be 7 since the mean is 6.The mean of a list of numbers is found by adding up the numbers in the list and dividing by how many numbers are in the list.Now since 7 + 7 = 14 the final number must add up to a total of 18 as 18/3 = 6.Therefore the final number in the list is 4.The numbers are 4, 7, 7.
Two numbers: 5 and 7 :)
The multiples of 9 are numbers that can be divided evenly by 9. The two prime numbers closest to a multiple of 9 are 7 and 11. Since 9 is between 7 and 11, the multiple of 9 that is in between these two prime numbers is 9 itself.
They are: 2 3 5 and 7
If the question is asking for the sum of natural numbers between two members of N, then you will have to add all the natural numbers between the two numbers (excluding the actual two numbers). For example, if they ask you to calculate the sum between 2 and 5, your answer should be 3+4=7.
The difference between two numbers is usually the result of subtraction. There are two numbers that are 12 away from 7. One is 19, the other is -5
-6
6.5