SOLUTION: Hal purchased a 200-minute calling card for $5.00. After he used all the minutes on that card, he purchased another card from the same company at a price of $13.75 for 550 minutes.
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-> SOLUTION: Hal purchased a 200-minute calling card for $5.00. After he used all the minutes on that card, he purchased another card from the same company at a price of $13.75 for 550 minutes.
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Question 458105: Hal purchased a 200-minute calling card for $5.00. After he used all the minutes on that card, he purchased another card from the same company at a price of $13.75 for 550 minutes. Let y represent the cost of the card in dollars and x represent the number of minutes.
y=? Answer by rfer(16322) (Show Source):