Since you're adding x feet to the length which is 12 feet:
New area: (12+x)10.5
Answer:
did u got the answer?
Step-by-step explanation:
Total value of 11 numbers
14*11
154
Total value of 9 numbers
9*9
81
Total value of other 2 numbers
154 - 81
73
So average of other 2 numbers
73 / 2
36.5
<span>Mean = 270
Standard deviation = 10
x = 255
Formula for z-score, z = (x - mean)/SD
z = (255 - 270) / 10
=> z = -15 / 10 => z = -1.5
So by referring to z-table, -1.5 correlates to 0.0668 that implies to 0.07
So 7% of the boxes of Apples weight less than 255oz.
The percentage of boxes is in the range of 255 oz and 270 oz,
Now calculating the requiring percentage 50% - 7% = 43%</span>
