I don't understand what you mean by this but I will assume you mean how many hours are needed to get to 24 hours from 5:30pm. In that case the answer would be 6 hours and 30 minutes since 5:30 would be 17 1/2 hours from 12:00am which would signify the start of a new day even if nobody is awake at that time.
Actually you could also mean turn 5:30 into 17:30 which I think would be called military time. I'm not sure.
Answer:
(4, -3) duh
Step-by-step explanation:
Answer:
a= -4/15
Step-by-step explanation:
Step one: 4+5a=8+20a
Step two: 5a-20a=8-4
Step three: -15a=4 then divide both sides by 15 to get your answer :)
Answer:
b = 3, which is an extraneous solution because if we replace b = 3 in the equation, we must be 5/0 and 30/0, and there is division by 0.
Step-by-step explanation:

The minus common multiply must be (b-3)*(b+3) = b² - 9

7b - 21 + 5b + 15 = 10b
2b = 6
b = 3
Which is an extraneous solution because if we replace b = 3 in the equation, we must be 5/0 and 30/0, and there is division by 0. So this solution is invalid.