23
23
Oh, dude, that's just the mean of those numbers. You add them all up and divide by how many there are. So, like, you add 11 + 9 + 19 + 19, which gives you 58, then divide by 4 to get 14.5. That's the mean, man. Easy peasy.
28
-1
5 and -4
4 & 19... 4 x 19 = 76. 4 + 19 - 23.
23
79
79
41
19
The sum of 4 and 19 is 23. You simply add the two numbers together: 4 + 19 = 23.
19
There are numerous options. 20+1 19+2 18+3 17+4 16+5 etc
47
The consecutive numbers that add up to eight are 3 and 4. When you add these two numbers together (3 + 4), the sum is 7. However, there are no two consecutive whole numbers that sum to 8. The closest consecutive whole numbers are 4 and 5, which add up to 9.
The two numbers that multiply together to equal 48 and add together to equal 19 are 12 and 4. When multiplied, 12 × 4 equals 48, and when added, 12 + 4 equals 16. Since these numbers do not satisfy both conditions, the correct pair is actually 16 and 3. They multiply to 48 and add up to 19.