Expand your horizons with the diverse and informative answers found on IDNLearn.com. Discover comprehensive answers to your questions from our community of experienced professionals.
Answer:
don't understand
but mean = summation x
total number
15=7+4+5+2x+11
5
15=27+2x
5
multiply both sides by 5
15×5=26+2x ×5
5
75=26+2x
75-26=2x
49=2x
2. 2
x= 24.5