You and your friend want to compare your cell phone rate plans.
You have cingular and your friend has sprint. You each have 500
minutes a month. Your plan is $40 a month and your friend's plan
is $35 a month. Both of you always go over your minutes.
It cost you .20 cents for each overage minute and your friend .45 cents for each overage minute.
Write equations to represent the above information.
2006-10-06 11:01:33 · 3 answers · asked by sskjvh1111 2 in Education & Reference ➔ Homework Help
40+20x=y
35+45x=y
2006-10-06 11:10:08 · answer #1 · answered by Jay 6 · 0⤊ 0⤋
Jane has the correct answer to this question, except she needs to account for the cost per minute. That is .20 and .45, and that x is minutes over 500 and y is cost per month. Though this is actually a liner programing question, in that it is dependant on the amount of miutues you use over 500 minutes a month. The more you use the better your plan is, but there is a point where they are equal and then your friends will become a better option.
2006-10-06 18:26:34 · answer #2 · answered by Buzlite 2 · 0⤊ 0⤋
I'm not sure what you mean by algebra II type equation. You may be looking for a formula for the overall monthly cost in each case. Of course it does not lend itself to a simultaneous solution.
Cingular's monthly bill: 40 + 0.20x
Sprint's monthly bill: 35 + 0.45x
where x is the 'overage' minutes in excess of 500.
2006-10-06 18:33:41 · answer #3 · answered by Einmann 4 · 0⤊ 0⤋