math 11

posted by George

Michaela has up to $20 to spend on bottled water and orange juice for a group hike. It cost $2 for each bottle of water and $ 4 for each bottle pdf orange juice.
write an inequality statement of this situation?
2x +4y< or equal to 20
Y < or equal to-1/2x +5
once this is graphed I am asked can Michaela buy 5 bottles of water and 7 bottles of orange juice why or why not use the graph to justify your answer. I know the answer is no so how do I justify this answer using the graph?

  1. Damon

    y </= -(1/2) x + 5
    y </= -(1/2) 5 + 5 ??
    y </= -2.5 + 5
    y</= 2.5
    If I buy 5 bottles of water, I can buy no more than 2.5 bottles of oj

  2. scott

    the graph is a line

    one side is the true region, the other side is the false region

    5 water and 7 OJ lies in the false region

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