If Sally has x books that are 2 pounds then her x books weights a total of 2x lbs.
8 books of 3 lbs weights 8*3=24lbs
All them add up to 62, therefore we can conclude to the equation :
2x+24=62
or we can simplify to
2x=38
or even
x=19
What is the median of the set 1,5,8,10,11,12,14,17,19,21,22,23?
Ilia_Sergeevich [38]
The median of this set is 13.
Explanation: we have 12 numbers, so we take the number between number 6 and 7 which are 12 and 14, between 12 and 14 we got 13, so that’s the median.
So practically, it’s asking you to rearrange the formula to make it equal the value given:
h=A/ 1/2b
w=V/lh
b=A/h
