15
-11
7x - 11 - 19 = 3x 4x = 30 x = 15/2
11 13 15 17 19
11 + 87 + 19 = 117 117 / 3 = 3939.
3+4= 7 7+4=11 11+4= 15 15+4=19 19+4=23 23+4=27 27+4=31
sorted: 1 2 7 9 11 15 19 20 number of items: 8 middle items: 9 and 11 average of middle items, or median: (9+11)/2 = 10
The least common multiple of the numbers 15, 11 and 19 is 3,135.
It is: (11+15)/2 = 13
The average is 13.
The average is 19.
-11
v is -15... -15*2 = -30... -30+11= -19.
11
Mean: 25Median: 19Mode: 19Range: 70Rewrite the values from least to greatest:10, 11, 15, 19, 19, 19, 25, 27, 80Mean is the average:(10 + 11 + 15 + 19 + 19 + 19 + 25 + 27 + 80)÷ 9 = 25Median is the middle value in the list:the 5thnumber = 19Mode is thenumber that is repeated more often:19 is repeated thrice so 19 is the mode.Range is the difference of the largest value and the smallest value: 80 - 10 = 70
10, 11, 15, 19, 19, 19, 25, 27, 80 Median: 19 Mean: 25 Mode: 19
(11 + 16 + 15) ÷ 3 = 14 is the average
2/3 + 3/5 =10/15 + 9/15= 19/15(19/15) / 2 = 19/3019/30