math correction

posted by .

can someone correct this for me.Also do i have to solve it all the way or what does it mean by inequality form.

Business and finance. The cost for a long-distance telephone call is $0.36 for the first minute and $0.21 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding $3.
Let x = be the number of minutes:
The first minute cost $0.36
The remaining x –1 minutes cost $0.21 each
So the remaining x- 1 minutes altogether costs $0.21 (x – 1)

Total cost = $0.36 + $0.21 (x – 1)

This must be less than or equal $3.00. So we have:
$0.36 +$0.21 (x- 1) <= $ 3.00
Multiply through by 100 and drop the $’s
36 + 21(x –1)<= 300
12 + 7 (x –1) <=100 (In this step in order to get this equation I had to divide both sides by 3 to make the numbers smaller.)
12 + 7x – 7 <= 100
7x + 5 <= 100

  • math correction -

    You already solved the answer...
    36 + 21(x –1)<= 300 is the answer to writing an inequality representing the number of minutes a person can make with 3 bucks.

  • math -

    i need help on correcting my work

  • math correction -

    The melt in your mouth chocolate factor opens its doors each day at 7:00am sharp. Sally arrived at the factory 10 minutes before the door opened. Luke got their 18 minutes after sally, but 4 minutes before Michelle. At what time did Michelle arrive at the factory?

  • math correction -

    write 5760 as a product of primes

  • math correction -

    200 with radical sign is approximately 100

  • math correction -

    $443

  • math correction -

    The price of a wrist watch is$575.00 subject to 15% V.A.T
    calculatethe 50 percent fat on wrist watch.
    calculate the vat inclusive price of the wrist watch

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math correction

    can someone correct this for me. Business and finance. The cost for a long-distance telephone call is $0.36 for the first minute and $0.21 for each additional minute or portion thereof. Write an inequality representing the number of …
  2. math

    The cost of a long-distance telephone call is $.36 for the first minute and $.21 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding $3. cost= …
  3. inequality expresion

    The cost of a long distant telephone call is $0.36 for first minutes and $0.21 each additional minutes or portion thereof. Write an inequality representing the number of minutes a person could talk with out exceeding $3.00 would this …
  4. algebra

    The cost for a long-distance telephone call is $0.36 for the first minute and $0.21 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding $3. Well, …
  5. business statistics

    If you are interested in determining the average of a 3-minute telephone call to locations within the continental U.S. what sample size must you take to be 96% confidential that the results will be within $.75 of the true mean cost …
  6. MAT 116 – Algebra 1A

    A long-distance telephone plan costs $2.00 a month, plus 4 cents per minutes, or part thereof, for any long-distance call made during the month. Write a verbal rule to determine the total monthly cost for your long-distance calls for …
  7. math

    lisa made a long-distance telephone call to her friend Jane. the cost was $.42 for the fist minute and $.19 for each additional minute. what was the total length of the call if it cost $2.89
  8. math

    The cost of a telephone call is $0.75 + $0.25 times the number of minutes. Write an algebraic expression that models the cost of a telephone call that lasts t minutes. i got C= 0.75 + 0.25t am i correct?
  9. math

    Telephone company A charges $3.00 for the first minute of any long distance call and $0.50 for each additional minute. Telephone company B charges $2.00 for the first minute of any long distance call and $0.70 for each additional minute. …
  10. Algebra

    A long-distance telephone call cost $.20 for the first 10 minutes plus $.10 for each additional minute. How much should you expect to pay for a call that was 26,457 seconds?

More Similar Questions