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sarahlikewoe

  • 2 years ago

4. The cost of a long-distance telephone call is given by the function C(m) = 0.1m + 0.95 where m is the length of the call in minutes. Determine how long a phone call can be made for $5.95. 100 minutes 50 minutes 45 minutes 59 minutes

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  1. Coolsector
    • 2 years ago
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    5.95 = 0.1m + 0.95 solve for m

  2. sarahlikewoe
    • 2 years ago
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    how do i do tht again ?

  3. satellite73
    • 2 years ago
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    when was your book written, 1976? who pays for long distance calls at ten cents a minute?

  4. Coolsector
    • 2 years ago
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    subtract 0.95 from both sides

  5. Coolsector
    • 2 years ago
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    what do you get ?

  6. satellite73
    • 2 years ago
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    \[595=10m+95\] is a good start, work with pennies

  7. Coolsector
    • 2 years ago
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    lol

  8. satellite73
    • 2 years ago
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    subtract 95 divide by 10

  9. sarahlikewoe
    • 2 years ago
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    59?

  10. sarahlikewoe
    • 2 years ago
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    @Coolsector

  11. Coolsector
    • 2 years ago
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    5.95 = 0.1m +0.95 subtract 0.95 from both sides 5 = 0.1m divide by 0.1 (its like multiplying by 10) both sides m=50

  12. sarahlikewoe
    • 2 years ago
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    Ohhh ! ok

  13. Coolsector
    • 2 years ago
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    :)

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