Problema Solution
average rainfall from monday to saturday is .3 inches. due to heavy rainfall on sunday average rainfall for the week increased to .5 inches. what was the rainfall on sun?
Answer provided by our tutors
The general equation for finding the average is:
Average= (sum of everything)/(number of everything)
Where 'everything' is the amount of rainfall each day. We are not given the individual rainfall for Monday to Saturday but we are given the average during that time so we can still find the sum during Monday to Saturday by this formula:
Sum of rainfall from Mon to Sat=.3(6)
Where '6' is the number of days during that time period (mon to sat).
We can plug this, along with the other given information, into the average formula to get:
.5=(.3(6)+S)/7
where 'S' stands for the rainfall on Sun. Solving for 'S', we get:
S=1.7 inches