To determine what additional number is needed to bring the average weight to 250, first find the sum of all the given weights:
18.5 + 68.5 + 63 + 65 + 22.5 + 21.5 + 55 + 83 + 4 = 341 lbs
Now, calculate the average by dividing the total sum by the number of weights given:
341 / 9 = 37.89 lbs
To bring the average to 250, the total sum of weights would need to be 250 * 9 = 2250 lbs
So, the additional weight needed would be:
2250 - 341 = 1909 lbs
Therefore, adding 1909 lbs would bring the average weight to 250 lbs.
Determine what number would bring the average to 250
18.5 lbs
68.5 lbs
63 lbs
65 lbs
22.5 lbs
21.5 lbs
55 lbs
83 lbs
4 lbs
1 answer
1 answer