Monday

September 22, 2014

September 22, 2014

Posted by **louise** on Sunday, September 29, 2013 at 5:21am.

- math -
**Reiny**, Sunday, September 29, 2013 at 8:31amplan1 = 1995 + 31m

plan2 = 4095 + 16m

plan3 = 8095

investigate the 3 equations,

I let good ol' dependable Wolfram sketch them for you

http://www.wolframalpha.com/input/?i=plot+y+%3D+1995+%2B+31m%2C+y+%3D+4095+%2B+16m%2C+y+%3D+8095

note that the plan3 is just a horizontal straight line

to find the exact intersection points, (there are three), solve them in pairs.

- math -
**louise**, Tuesday, October 1, 2013 at 3:29pmthanks!

**Answer this Question**

**Related Questions**

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

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

management science - Kim Davis has decided to purchase a cellular phone, but she...

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

math - MaineCellular offers a phone plan that costs $12 per month plus 10 cents ...

ALGEBRA - A telephone company has a choice of two plans. Plan A - $30 per month...

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

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

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

math - $24.99 per month for cell phone company package offer. includes 200 ...