61.5
The average is 56.
(78 + 56)/2 = 67
The car's average speed is 56 miles per hour.
When you want to find the average of something you add all the numbers, then multiply the sum by how many numbers there areExample: 34 56 67 87add 34+56+67+87= 244 divide by 4 because that's how many numbers there are
3 - 67(56 - 90 + 76) = 3 - 67(42) = 3 - 2814 = -2811.
56: 2, 7 67: 67 75: 3, 5 81: 3 89: 89
0.8358
123
67
56
56 plus 67 equals 123. This addition can be solved by adding the ones column (6 + 7 = 13) and carrying over the tens place value to get the final result. In mathematical terms, this is expressed as 56 + 67 = 123.
123