You are choosing between two long-distance telephone plans. plan a has a monthly fee of $45.00 with a charge of $0.05 per minute for all long-distance calls. plan b has a monthly fee of $15.00 with a
charge of $0.15 per minute for all long-distance calls. complete parts a and b.
a. for how many minutes of long-distance calls will the costs for the two plans be the same?
minutes

You will pay 15 dollars during the month.

45-15=30, so you have 30 dollars left to spend on talking. Now you divide 30 by 0.05 to find the amount of minutes possible. 30/0.05=600, so you can spend 600 minutes talking.

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

answer: do we write it

step-by-step explanation: