The sum of all the measurements is just the average times the number.


So if the average of all 92 is 7 the sum of those is

The average of the last two is 7.2 so their sum is

That means the sum of the first 90 is

so the average of the first 90 is

cm
8x + 3× + 9x = 180
20x = 180
x = 180/20
x = 9
The smallest angle is: 3×9 = 27 degrees
Note: 180 degrees is the sum of angles in a triangle
Divide the number sold by the percentage:
72 / 0.12 = 600
Total crop was 600 apples.
Answer:
2s+2p = 42,
3s+p = 37,
2 shirts at 8 = 16,
2 pants at 13 = 26.
Hope this helps.
Step-by-step explanation: