calyxfauskee calyxfauskee

12-01-2022
Mathematics

contestada

For her phone service, Rachel pays a monthly fee of $30, and she pays an additional $0.05 per minute of use. The least she has been charged in a month is $102.90.

What are the possible numbers of minutes she has used her phone in a month?
Use m for the number of minutes and solve your inequality for m.

Respuesta :

12-01-2022

102.90 - 30 = 72.90

72.90/0.05 = 72.90/(1/20)

= 72.90×20

= 1458

m > 1458

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