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dybincka [34]
3 years ago
5

Josh bought 3 bottles of grape juice and 5 bottles of water for a total of $14.50. Mary bought 2 bottles

Mathematics
1 answer:
sesenic [268]3 years ago
3 0

Answer:

  • Bottle of water = $2
  • Bottle of grape juice = $1.50

Step-by-step explanation:

  • Grape juice = g
  • Water = w

<u>Equations:</u>

  • 3g + 5w = 14.50
  • 2g + 3w = 9.00

<u>Subtract the 3 times the second equation from the twice the first:</u>

  • 2*(3g + 5w) - 3(2g + 3w) = 2*14.50 - 3*9.00
  • 6g + 10w - 6g - 9w = 29 - 27
  • w = 2

<u>Then, finding g:</u>

  • 3g  + 2*5= 14.50
  • 3g = 14.50 - 10
  • 3g = 4.5
  • g = 1.50
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