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9. Marty wants to buy a gallon of lemonade, and a gallon jug costs $3.89, while a pint costs $0.59. He wants to know how much money he would save by buying the gallon jug instead of multiple pints. (3 points: Part I - 1 point; Part II - 1 point; Part III - 1 point)Part I: How many pints are in a gallon?Part II: How much money would Marty spend if he bought multiple pints?Part III: How much money would Marty save by buying the gallon jug instead of multiple pints?

Respuesta :

Part I. In a gallon, there are 8 pints.

Part II. If Marty bought multiple pints, he will spend:

[tex]8\text{ pints}\cdot0.59=\text{ \$4.72}[/tex]

Part III. Marty would save:

[tex]4.72-3.89=\text{ \$0.83}[/tex]

Marty would save $0.83 by buying the gallon jug instead of multiple pints.