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kmayb

  • 2 years ago

For her phone service, Leila pays a monthly fee of $27, and she pays an additional .05 per minute of use. The least she has been charged in a month is $91.30 What are the possible numbers of minutes she has used her phone in a month? Use m for minutes and solve for m.

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  1. math_proof
    • 2 years ago
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    27+0.05m=91.30 solve for m

  2. math_proof
    • 2 years ago
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    0.05m=91.30-27 0.05m=64.30 m=64.30/0.05

  3. kmayb
    • 2 years ago
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    Wouldn't I have to use an inequality for this?

  4. math_proof
    • 2 years ago
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    you can, so that would be the least amount

  5. kmayb
    • 2 years ago
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    Ok thank you!

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