Friday

November 28, 2014

November 28, 2014

Posted by **melissa** on Wednesday, April 15, 2009 at 8:09pm.

- math -
**Rick_the_chemist**, Thursday, April 16, 2009 at 5:17amX = the cost of MaineCellular's plan

P = the cost of Portland Wireless' plan

T = time in minutes.

X = $12 + $0.10 T

P = $20 + $0.05 T

P = X at the number of minutes that the two costs cross. So, set X = P

$12 + $0.10 T = $20 + $0.05 T

Solve for T.

Once you have T, anything less than T minutes will give one of the plans an edge. Which one?

Anything greater than T minutes will give the other plan the edge.

**Answer this Question**

**Related Questions**

Algebra - ABC phone company charges $18 per month plus 7 cents per minute of ...

math - your cellular phone plan costs $11 per month plus $.12 per minute of ...

Math - You have a wireless phone plan that costs $25 per month. You must also ...

Math - One calling plan offers long distance calls for .03 per minute. Another ...

Elementary Algebra - I need help setting this problem up? AT&T one rate 10cents ...

math - 73. Cell Phone Plan A cell phone plan costs $3.95 per month plus $0.07 ...

Math - How would you solve this word problem in one variable inequality form? ...

Gr10 Math - Charlene is looking into cell phone plans. Cell plus gives unlimited...

Math - Long distance Phone Company A charges a base rate of $5.00 per month plus...

math - cellular phone companies. 1. with this plan each person is charged $19.95...