109
average:
= (28 + 190)/2
= 218/2
= 109
Halfway between 18 and 28 is (18 + 28) ÷ 2 = 23.
To find the number halfway between any two numbers x and y, add x and y, then divide the answer by 2. So for 21 and 35, 21+ 35 = 56. 56/2 = 28. You can check your answer by seeing that 21 + 7 = 28 and 35 - 7 = 28.
Average of three = 20 so total of three = 60; 60 - (28 + 15) = 60 - 43 = 17
-190
3 with remainder 28.
This is the average (28 + 100)/2 =64. You can think of it as number k where k-28=100-k which leads to 2k=28+100 so 2k=128
Simply calculate the average of the two numbers.
To find the missing number in the sequence 10, 15, 28, we can look for a pattern in the differences between the numbers. The difference between 10 and 15 is 5, and the difference between 15 and 28 is 13. If we assume a pattern in the differences, the missing number could be 21, which fits as the average of 15 and 28. Thus, the sequence could be 10, 15, 21, 28.
24
190 North - 1999 2010-11-28 was released on: USA: 28 November 2010
Halfway between 18 and 28 is (18 + 28) ÷ 2 = 23.
20
The numbers are: (-14 +sq rt 190) and (-14 -sq rt 190) Check: (-14 +sq rt 190)+(-14 -sq rt 190) = -28 and (-14 +sq rt 190)*(-14 -sq rt 190) = 6
28
23 is the only prime number between 20 and 28.
Between 28 - 38 ft
To find the number halfway between any two numbers x and y, add x and y, then divide the answer by 2. So for 21 and 35, 21+ 35 = 56. 56/2 = 28. You can check your answer by seeing that 21 + 7 = 28 and 35 - 7 = 28.