Answered

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Emily saw the sign below at a McDonald’s. If she bought one of each item and spent $7.50, how much did the fries cost? = ______________________ItemCost ($)Chicken Nuggets3x + 0.05FriesxDrinkx + 0.10

Sagot :

Given:

The cost of chicken nuggets is, c = 3x+0.05.

The cost of fries is, f = x.

The cost of drink is, d = x+0.10.

The total cost spent for each item is, T =$7.50.

Explanation:

Since, the sum of the costs of each item is $7.50 the equation of total cost can be written as,

[tex]\begin{gathered} c+f+d=T \\ (3x+0.05)+(x)+(x+0.10)=7.50_{}_{} \\ 5x+0.15=7.50 \\ 5x=7.50-0.15 \\ x=\frac{7.35}{5} \\ x=1.47 \end{gathered}[/tex]

Thus, the value of x is 1.47 which is the cost of fries.

Hence, the cost of fries is $1.47.

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