A catalog company is considering the purchase of an 800 phone number. Without the 800 number, calls cost $0.22 per minute, and with the 800 number calls will cost $0.13 per minute plus a $55.00 flat rate. Write a symbolic statement that could determine the minutes of calls that would make the $0.22 per minute charge equal to a $0.13 per minute charge including the $55.00 flat rate.
A) $0.22 x + 55 = 0.13 x$
B) $0.22 = 0.13 + 55.00 x$
C) $0.22 x = 0.13 + 55.00 x$
D) $0.22 x = 0.13 x + 55.00$

Question

A catalog company is considering the purchase of an 800 phone number. Without the 800 number, calls cost $0.22 per minute, and with the 800 number calls will cost $0.13 per minute plus a $55.00 flat rate. Write a symbolic statement that could determine the minutes of calls that would make the $0.22 per minute charge equal to a $0.13 per minute charge including the $55.00 flat rate. 
A) $0.22 x + 55 = 0.13 x$
B) $0.22 = 0.13 + 55.00 x$
C) $0.22 x = 0.13 + 55.00 x$
D) $0.22 x = 0.13 x + 55.00$

Quizplus · Accepted Answer

We want to find the point where the two costs are equal, so we set them equal to each other: 0.22x = 0.13x + 55.00. Then we solve for x, which represents the number of minutes: 0.09x = 55.00, x = 611.11. This means that if the company expects to receive more than 611 minutes of calls per month, they should switch to the 800 number.

A Catalog Company Is Considering the Purchase of an 800 0.22x+55=0.13x0.22 x + 55 = 0.13 x0.22x+55=0.13x

A Catalog Company Is Considering the Purchase of an 800 $0.22 x + 55 = 0.13 x$