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Travis buys 4 bags of M&Ms and a bottle of water. The total cost was $10.75. If the bottle of water cost $1.75, which equation can be used to determine the cost of one bag of M&ms?



Answer :

Let's call x each bag of M&M, and y each bottle of water. If they cost $10.75, we can express the following

[tex]4x+y=10.75[/tex]

If the bottle of water costs $1.75, then we can replace it to find x

[tex]\begin{gathered} 4x+1.75=10.75 \\ 4x=10.75-1.75 \\ 4x=9 \\ x=\frac{9}{4}=2.25 \end{gathered}[/tex]

Hence, each bag of M&Ms cost $2.25.

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