In this question, 10 people average running distance is 2.7miles. Then the sum of their running distance would be: 10 people * 2.7 miles/people= 27 miles.
The group then divided into 2, 4 people with 3 miles average and 6 people with unknown average. Since the people are same like the 10 people group, their total running distance would be the same. The calculation would be:
total distance = group1 * average1 + group2 * average2
27 miles= 4 people * 3 miles/people + 6 people* average2
6 people * average2 = 27 miles -12 miles = 15 miles
average2= 15 miles/6people= 2.5 miles/people
<h2>(x + 4) (x + 4)</h2>
Step-by-step explanation:
= x² + 8x + 16
= x² + 4x + 4x + 16
= x (x + 4) + 4 (x + 4)
= (x + 4) (x + 4)
<h2>follow me</h2>
Answer: 6.75% which rounds up to 7%
Step-by-step explanation: