Asked by Krystalize

The average temperature for three days was 19 degrees. What must the temperature be on the fourth day to make the average temperature during the four days 21 degrees?

Answers

Answered by Arif

The average of 3 days temperature was 19 degrees:
[(x+x+x)/3]=19
x+x+x=3*19
x+x+x=57
let assume the three x values are 17, 21 and 19 which equal 57 degrees.
[(17+21+19+x)/4]=21
(57+x)=4*21
57+x=84
x=84-57
x=27
the 4th day temperature must be 27 degrees.
Answered by Henry
(T1+T2+T3)/3 = 19, T1+T2+T3 = 3*19 = 57. (57+T4)/4 = 21, T4 = 27 Degrees.


Answered by dewanjah
27 degrees
There are no AI answers yet. The ability to request AI answers is coming soon!

Related Questions