an average of a 4 numbers is 16 and the average of another 4 numbers is 25.find the average of the eight numbers taken together
Answers
Answer:
18
Step-by-step explanation:
Average = sum / number of terms
First 4 numbers
Average = 16
Number of terms = 4
Sum / 4 = 16
= > Sum = 16 × 4
= 64
Next 4 numbers
Average = 20
Number of terms = 4
Sum / 4 = 20
= > Sum = 20 × 4
= 80
Total average
Total sum = 80 + 64
= 144
Number of terms = 8
Average = 144/8
= 72/4
= 36/2
= 18
ANSWER:
18
Answer:
A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC. In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane.