Question

Casey buys sandwiches and bags of chips. Each sandwhich cost three times as much as a bag of chips.bshe bought 5 sandwiches for $6 each and spent $42. How many bags b did she buy?

Answers

  1. Therefore, the number of bags of chips Casey buys if each sandwhich cost three times as much as a bag of chips is 6 bags of chips.

    Equation

    • Cost of each bag of chips = y
    Cost of sandwiches = 3y = $6
    3y = $6
    y = $6/2
    y = $3
    • Number of sandwiches bought = 5
    • Number of bags of chips = x
    • Total spent = $42
    Total spent = (Cost of each bag of chips × Number of bags of chips) + (Cost of sandwiches × Number of sandwiches bought)
    42 = (y × x) + ($6 × 5)
    42 = (2 × x) + 30
    42 = 2x + 30
    42 – 30 = 2x
    12 = 2x
    x = 12/2
    x = 6 bags of chips
    Therefore, the number of bags of chips Casey buys if each sandwhich cost three times as much as a bag of chips is 6 bags of chips
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