Question

The monthly cost (in dollars) of a long-distance phone plan is a linear function of the...

The monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes). The monthly cost for 51 minutes of calls is $16.20 and the monthly cost for 100 minutes is $22.08. What is the monthly cost for 89 minutes of calls?

Math   Precalculus   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The monthly cost (in dollars) of a long-distance phone plan is a linear function of the...
The monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes). The monthly cost for 31 minutes of calls is $15.53 and the monthly cost for 80 minutes is $21.41 . What is the monthly cost for 54 minutes of calls?
The length of long distance phone calls, measured in minutes, is known to have an exponential...
The length of long distance phone calls, measured in minutes, is known to have an exponential distribution with E(X)=2. a) Find the probability that a phone call lasts less than 9 minutes b) Find the probability that a phone call lass between 7 and 9 minutes c) If 3 phone calls are made one after another, on average, what would you expect the total to be?
A phone company offers two monthly charge plans. In Plan A, the customer pays a monthly...
A phone company offers two monthly charge plans. In Plan A, the customer pays a monthly fee of $6.20 and then an additional 7 cents per minute of use. In Plan B, there is no monthly fee, but the customer pays 9 cents per minute of use. For what amounts of monthly phone use will Plan A cost more than Plan B? Use m for the number of minutes of phone use in a month, and solve your inequality for...
A phone company offers two monthly charge plans. In Plan A, the customer pays a monthly...
A phone company offers two monthly charge plans. In Plan A, the customer pays a monthly fee of $41.40 and then an additional 4 cents per minute of use. In Plan B, the customer pays a monthly fee of $35 and then an additional 6 cents per minute of use. For what amounts of monthly phone use will Plan A cost no more than Plan B? Use m for the number of minutes of phone use, and solve your inequality...
A study of long-distance phone calls made from Target Corporation headquarters revealed the length of the...
A study of long-distance phone calls made from Target Corporation headquarters revealed the length of the calls, in minutes, follows the normal probability distribution. The mean length of time per call was 4.6 minutes and the standard deviation was 0.50 minutes. (25 pts) What is the probability that calls last between 4.6 and 5.4 minutes?   What is the probability that calls last more than 5.4 minutes? What is the probability that calls last between 5.4 and 6.0 minutes? What is...
A phone company has a monthly cellular data plan where a customer pays a flat monthly...
A phone company has a monthly cellular data plan where a customer pays a flat monthly fee of $10 and then a certain amount of money per megabyte (MB) of data used on the phone. If a customer uses 20 MB, the monthly cost will be $11.20. If the customer uses 130 MB, the monthly cost will be $17.80. a. Find a linear equation for the monthly cost of the data plan C as a function of x, the number...
A real estate agent is considering changing her cell phone plan. There are three plans to...
A real estate agent is considering changing her cell phone plan. There are three plans to choose from, all of which involve a monthly service charge of $20. Plan A has a cost of $.38 a minute for daytime calls and $.17 a minute for evening calls. Plan B has a charge of $.47 a minute for daytime calls and $.14 a minute for evening calls. Plan C has a flat rate of $75 with 275 minutes of calls allowed...
A real estate agent is considering changing her cell phone plan; there are three to chose...
A real estate agent is considering changing her cell phone plan; there are three to chose from - all involve a monthly fee of $19.75 Plan A charges $0.53 per minute for daytime calls and $0.19 per minute for evening calls. Plan B charges $0.56 per minute for daytime calls and $0.13 per minute for evening calls. Plan C has a flat rate of $49 with up to 200 minutes of calls included per month and a charge of $0.30...
A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield, Connecticut, revealed...
A study of long-distance phone calls made from General Electric Corporate Headquarters in Fairfield, Connecticut, revealed the length of the calls, in minutes, follows the normal probability distribution. The mean length of time per call was 5.00 minutes and the standard deviation was 0.40 minutes. a. What fraction of the calls last between 5.00 and 5.80 minutes? (Round z-score computation to 2 decimal places and your final answer to 4 decimal places.)   Fraction of calls    b. What fraction of...
2. My monthly demand for cell phone service is as follows: − I am willing to...
2. My monthly demand for cell phone service is as follows: − I am willing to pay up to $1 per minute for the first 10 minutes of use per month. − I am willing to pay up to $0.50 per minute for the next 20 minutes per month. − For all minutes beyond the 30th (covered above), my demand is P = 0.50 – Q/100. P is in dollars and Q is minutes.(You should think of those as additional...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT