18
-13
Add up all the numbers and divide that total by the number of numbers. 1+ 2 + 3 + 4 + 5 = 15 15/5 = 3 The average is 3
27
26
2 numbers that add up to 8
15
The two numbers that multiply to -15 and add up to 2 are 5 and -3. When you multiply 5 and -3, you get -15, and when you add them together, you get 2.
45
Three numbers that add up to 15 are 5, 5, and 5. Another combination could be 7, 5, and 3. Additionally, 10, 4, and 1 also sum to 15.
The numbers are: 12 and -15
They all relate by adding up the 6+6+3=15 You can not get to the sum of 15 is you don't have the first 3 numbers to add up.
-13
There is no answer to this. The factors of 15 are 1, 3, 5 and 15. The only numbers that add up to four are 1+3, 4+0 and 2+2.
Add up all the numbers and divide that total by the number of numbers. 1+ 2 + 3 + 4 + 5 = 15 15/5 = 3 The average is 3
The two numbers that add to -2 and multiply to -15 are 3 and -5. When you add them, 3 + (-5) equals -2, and when you multiply them, 3 × (-5) equals -15.
-15
There is no answer to this. The factors of 15 are 1, 3, 5 and 15. The only numbers that add up to four are 1+3, 4+0 and 2+2.