celestem5158 celestem5158

05-11-2017
Mathematics

contestada

For his long distance phone service, hong pays a $5 monthly fee plus 9 cents per minute. last month, hong's long distance bill was $21.29 . for how many minutes was hong billed?

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bob3141 bob3141

07-11-2017

m is the number of minutes
5+0.09m=21.29
0.09m=16.29
m=16.29/0.09
m=181

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