Customers of a phone company can choose between two service plans for long distance calls. The first plan has an $18 monthly fee and charges an additional $0.07 for each minute of calls. The second plan has no monthly fee but charges $0.12 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal?

Question

22-12-2017
Mathematics

contestada

Customers of a phone company can choose between two service plans for long distance calls. The first plan has an $18 monthly fee and charges an additional $0.07 for each minute of calls. The second plan has no monthly fee but charges $0.12 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal?

Respuesta :

Otras preguntas

What is sfumato? (In art) A. The Italian word for soft light B. A strong contrast between light and dark C. A technique that visually unifies a painting hang a

Which of the following angle relationships in △ABC are correct? Select all that apply.

Which of the following would be used to measure the volume of a fluid? stopwatch graduated cylinder scale meter stick

Find the area of the sector of a circle with radius 2 inches formed by a central angle of 4.3 radians: (in square inches)

an evaluation team wants to find out HS opinions about an anti bullying program. The researcher randomly selects 50 freshman, 50 sophomores, Juniors, and senio

Address the concerns that the employees may have and insure them on their fears.

What of the following is ordered from LARGEST to SMALLEST? Select one: a. virus, mitochondrion, hemoglobin, glucose, water molecule b. mitochondrion, hemoglobin

Kathleen is considering expanding her dress shop. If interest rates rise she is Group of answer choices less likely to expand. This illustrates why the supply o

Plz help me with this question

Before the reaction, the volume of the gaseous mixture was 5.00 LL. After the reaction, the volume was 2.00 LL. Calculate the value of the total energy change,

chudung1976 chudung1976 · Answer 1 · 2017-12-31T03:42:48+01:00

We call x the minutes to talk
+ The first plan has an $18 monthly fee and charges an additional $0.07 for each minute of calls: The money for x minute is 28+0.07x
+ The second plan has no monthly fee but charges $0.12 for each minute of calls.And the money is 0+ 0.12x
We have to solve the equation: 28+0.07x= 0+ 0.12x
or 0.12x-0.07x=28
0.05x=28 and we have x=28:0.05= 560.
For 560 minutes of calls will the costs of the two plans be equal