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leva [86]
3 years ago
13

Custumers of a phone company can choose between two service plans for long distance calls. The first plan has a $9 monthly fee a

nd charges an aditional $0.13 for each minute pf calls. The second plan has $23 monthly fee and charges an additional $0.09 monthly for each minute of calls. For how many minutes of calls will the costs of the two plans be equal
Mathematics
2 answers:
Zinaida [17]3 years ago
5 0
9+0.13x
23+0.09x
im not sure if thats how u solve it but i tried my best to help sorry
saul85 [17]3 years ago
3 0
The answer is 350.
<em>
m= minutes</em>

Plan 1:  9+0.13<em>m</em>
Plan 2:  23+0.09<em>m</em>

9+0.13<em>m</em> = 23+0.09<em>m</em>
-9               -9
0.13<em>m</em> = 14+0.09<em>m</em>
-0.09<em>m</em>        -0.09<em>m</em>
0.04<em>m</em>= 14
14÷0.04= 350
<em>m</em>= 350
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