Question 792882
If the average of 3,s, and t is 5, what is the value of s+t?
the equation for this:
{{{(3 + s + t)/3}}} = 5
multiply both sides by 3
3 + s + t = 15
s + t = 15 - 3
s+t = 12
:
:
Check
{{{(3 + 12)/3}}} = 5