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samuel puchased half a dozen cupcakes for $4.25. Which expression could be used to determine the price for 34 cupcakes?a. 4.25 divided by 0.5x34b. 4.25 divided by 6x34c. 6 divided by 4.25x34d. 0.5 divided by 4.25x24

User Alt
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1 Answer

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19 votes

Solution:

Given that Samuel purchased half a dozen cupcakes for $4.25, this implies that


6\text{ cupcakes}\Rightarrow\$\text{4.25}

To determine the price for 34 cupcakes, let y represent the price for 34 cupcakes.

This implies that


34\text{ cupcakes}\Rightarrow\$y

To solve for y, we have


\begin{gathered} 6\text{ cupcakes}\Rightarrow\$\text{4.25} \\ 34\text{ cupcakes}\Rightarrow\$\text{y} \\ cross-multiply, \\ 6\text{ cupcakes}*\$\text{y=34 cupcakes}*\$\text{4.25} \\ divid\text{e both sides by 6 cupcakes,} \\ \frac{6\text{ }cupcakes*\operatorname{\$}y}{6\text{ cupcakes}}\text{=}\frac{34\text{ }cupcakes*\operatorname{\$}4.25}{6\text{ cupcakes}} \\ \Rightarrow y=(4.25)/(6)*34 \end{gathered}

Hence, the expression that could be used to determine the price for 34 cupcakes is 4.25 divided by 6 times 34

User Zephyrthenoble
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