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Sarah bought snacks for her team's practice. She bought a bag of chips for $3 and a 8-pack of juice bottles. The total cost before tax was $18.76. Which equation could be used to determine xx, how much each bottle of juice costs?

Respuesta :

The application of algebraic equations is important in solving this question.

The equation that could be used to determine how much each bottle cost is: 18.76 = 3 + 8x.

  • We represent

The cost of each bottle of juice =  x

The total cost before tax = C = $18.76

The cost of a bag of chips = $3

  • She bought a bag of chips for $3 and an 8-pack of juice bottles. The total cost before tax was $18.76.

The equation is written as :

c = $3 + 8 * x

c = 3 + 8x

18.76 = 3 + 8x

Solving for the cost of each bottle of juice =

18.76 = 3 + 8x

Subtract 3 from both sides

18.76 - 3 = 3 - 3 + 8x

15.76 = 8x

Divide both sides by 8

15.76/8 = 8x/8

x = $1.97

The cost of each bottle of juice is $1.97.

Therefore, the equation that could be used to determine how each bottle cost is: 18.76 = 3 + 8x.

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