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When making a phone call using calling card a call lasting 3 minutes costs $1.60. A call lasting 10 minutes costs $4.40. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that relates to the cost of making the call y, to the time x.
16 years ago

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Ms. Sue
Marth already answered this.

http://www.jiskha.com/display.cgi?id=1250023442
16 years ago

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