SOLUTION: A radio advertiser buys time during prime time at $243 per minute and at late night time at $27 per minute. He bought three times as much late night time than for prime time, and s
Algebra.Com
Question 622209: A radio advertiser buys time during prime time at $243 per minute and at late night time at $27 per minute. He bought three times as much late night time than for prime time, and spent $2268. How many minutes at each rate did he buy?
-the answer should be 7 minutes of prime time and 21 minutes of late night time, but I can't figure out how to do the math.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent the prime time minutes and then 
represents the late night time. Each prime minute costs $243, so the value of the prime time is 
. Similarly, the value of the late night time is \ =\ 81x)
. So:
Solve for , then calculate .
John
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
Arlo walked n feet per minute and arrived at the clinic 10 minutes late. How fast should... (answered by ankor@dixie-net.com)
A student starting from his house walk at a speed of 2.5 km per hour and reaches his... (answered by josgarithmetic,MathTherapy)
A student starting from his house walk at a speed of 2.5 km per hour and reaches his... (answered by lwsshak3,MathTherapy)
Mia walked n feet per minute and arrived at the clinic 10 minutes late. How fast should... (answered by Alan3354)
For using a computerized financial news network for 45 min during prime time and 80 min (answered by Theo)
For using a computerized financial news network for 45 min during prime time and 80 min... (answered by ewatrrr)
For using a computerized financial news network for 45 min during prime time and 80 min... (answered by CPhill)
A radio station plays 12 commercials per hour. Each commercial is one minute long. If you (answered by stanbon)
A salesman started walking from office A at 8:30 AM. at the rate of 2.50 kph. He arrived... (answered by ankor@dixie-net.com,ikleyn)
