Saturday

April 18, 2015

April 18, 2015

Posted by **Sonji** on Sunday, January 15, 2012 at 11:30am.

• Plan A: $45 a month for unlimited calling Plan B $15 a month .10 per min.

I need to write a cost equation for plan A and for plan B then I need to solve.

- math -
**Reiny**, Sunday, January 15, 2012 at 11:36amPlan A: cost = 45

Plan B: cost = .10x + 15, where x is the number of minutes

You want to know when

.10x + 15 > 45

x + 150 > 450

x > 300

check:

for 299 minutes:

PlanA = 45

PlanB = 29.90 + 15 = 44.90

...... Plan B is still better

for 301 minutes:

Plan a = 45

PlanB = 30.10 + 15 = 45.10

.... Plan A is better for x > 300

**Answer this Question**

**Related Questions**

math - You need to choose between two phone plans for local calls. Plan A ...

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

math - Verizon has a cell phone plan for $28.00 per month plus $.30 per minute ...

Math ASAP - Verizon has a cell phone plan for $28.00 per month plus $.30 per ...

Geometry - Horizon has a cell phone plan for $28.00 per month plus $.30 per ...

Math - i reposted this cause i really need help: greg is considering 2 different...

math - Jamia is deciding between two long-distance telephone plans: • Plan A ...

Math - I have the same problem as Marita. Can someone tell us what equation to ...

Algebra - the phone company has two plans for cell phones. the first plan calls ...

Math 1 question - greg is considering 2 different plans for music downloads. how...