![dlatricewilcoxp0tsdw](/avatars/26669.jpg)
dlatricewilcoxp0tsdw
01.09.2019 •
Mathematics
Customers of a phone company can choose between two service plans for long distance calls. the first plan has no monthly fee but charges for each minute of calls. the second plan has a monthly fee and charges an additional for each minute of calls. for how many minutes of calls will the costs of the two plans be equal?
Solved
Show answers
More tips
- C Computers and Internet How to Create a VKontakte App: A Detailed Guide...
- L Leisure and Entertainment When will Maslenitsa start?...
- F Food and Cooking Discovering the Mysterious Fruit of Feijoa...
- B Business and Finance How to Open an Online Store? A Detailed Guide for Beginners...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
Answers on questions: Mathematics
- M Mathematics 18-(4x+3y) if x = -5 and y = 3...
- M Mathematics Please please help i am stuck...
- M Mathematics A rectangle and a square have equal areas. The length of the square is 9 cm.The rectangle has width 4 cm. What is the perimeter of the rectangular?...
- M Mathematics 7x+156 what is x 9x+184°what is x...
- M Mathematics PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST ...
- M Mathematics Can y’all plz help me on this quiz.....
- M Mathematics Please Help Me WITH THIS? WILL GIVE TO BEST ANSWER!...
- M Mathematics Subscribe to the youttube channel YoungEid (you might get brainliest)...
- M Mathematics Which of the following equations is parallel to 8 x - 10y=-2 and contains (1, -2)?...
- M Mathematics 22 Find the slope of a line that passes through the points (-5, 3) and (-3, 8) A 5/2 B 2/5 C -5/8 D -8/5...
Ответ:
\\x= P/(c -d)[/tex],
Assume that the price of each minute in the first plan is $c and that the second plan charges a flat rate of $P and a charge of additional $d for every minute.
Step-by-step explanation
Assume that the price of each minute in the first plan is $c and that the second plan charges a flat rate of $P and a charge of additional $d for every minute.
Thus, the monthly cost of a customer who consumes x minutes in each plan is:
For the first plan:![cx](/tpl/images/0216/8122/37fcf.png)
and for the second plan:![P + dx](/tpl/images/0216/8122/9f09b.png)
Considering that the monthly costs must be the same in each plan, you have to:
\\x= P/(c -d)" alt="c - d" />
\\x= P/(c -d)" />.
For example if
, Then the number of minutes would be,
and the total cost for each plan would be ![$20](/tpl/images/0216/8122/9fb09.png)
Ответ: