A = (a+b)/2
2*A = 2*(a+b)/2 ... multiply both sides by 2
2A = a+b
2A-a = a+b-a ... subtract 'a' from both sides to isolate b
2A-a = b
b = 2A-a
Answer: b = 2A-a
17/2, 8 and 1/2 or 8.5 are all the correct answers.
Answer:
its 133
Step-by-step explanation:
50 fits into 6650 133 times. u cant show a pic but if you know division, its easy.
it is 20 minuets that she went over on her bill