Questions: Question Part 2 of 3 Completed: 9 of 15 My score: 7.2 / 15 pts (48%) The table shows Anna's total utility from salads and pizzas. When Anna buys 4 salads and 4 pizzas, what is her total utility and her marginal utility from the fourth salad? If the price of a salad is 3, what is her marginal utility per dollar from salads? Answer to 1 decimal place. Anna's total utility when she buys 4 salads and 4 pizzas is 771 units. Salads Quantity per week Total utility ---------------------------------- 0 0 1 105 2 195 3 270 4 330 5 375 6 405 Pizzas Quantity per week Total utility ---------------------------------- 0 0 1 189 2 294 3 378 4 441 5 495 6 537 Anna's marginal utility from the fourth salad is units.

Question Part 2 of 3 Completed: 9 of 15 My score: 7.2 / 15 pts (48%) The table shows Anna's total utility from salads and pizzas. When Anna buys 4 salads and 4 pizzas, what is her total utility and her marginal utility from the fourth salad? If the price of a salad is 3, what is her marginal utility per dollar from salads? Answer to 1 decimal place. Anna's total utility when she buys 4 salads and 4 pizzas is 771 units. Salads Quantity per week Total utility ---------------------------------- 0 0 1 105 2 195 3 270 4 330 5 375 6 405 Pizzas Quantity per week Total utility ---------------------------------- 0 0 1 189 2 294 3 378 4 441 5 495 6 537 Anna's marginal utility from the fourth salad is units.
Transcript text: Question Part 2 of 3 Completed: 9 of 15 My score: $7.2 / 15$ pts (48%) The table shows Anna's total utility from salads and pizzas. When Anna buys 4 salads and 4 pizzas, what is her total utility and her marginal utility from the fourth salad? If the price of a salad is $\$ 3$, what is her marginal utility per dollar from salads? Answer to 1 decimal place. Anna's total utility when she buys 4 salads and 4 pizzas is 771 units. \begin{tabular}{ccccc} \hline \multicolumn{2}{c}{ Salads } & & \multicolumn{2}{c}{ Pizzas } \\ \cline { 1 - 2 } \cline { 4 - 5 } \begin{tabular}{c} Quantity \\ per week \end{tabular} & \begin{tabular}{c} Total \\ utility \end{tabular} & & \begin{tabular}{c} Quantity \\ per week \end{tabular} & \begin{tabular}{c} Total \\ utility \end{tabular} \\ \hline 0 & 0 & & 0 & 0 \\ 1 & 105 & & 1 & 189 \\ 2 & 195 & & 2 & 294 \\ 3 & 270 & & 3 & 378 \\ 4 & 330 & & 4 & 441 \\ 5 & 375 & & 5 & 495 \\ 6 & 405 & & 6 & 537 \\ \hline \end{tabular} Anna's marginal utility from the fourth salad is $\square$ units.
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Solution

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To solve the problem, we need to determine Anna's total utility and marginal utility from the fourth salad, as well as her marginal utility per dollar from salads.

  1. Total Utility from 4 Salads and 4 Pizzas:

    • From the table, the total utility from 4 salads is 330 units.
    • The total utility from 4 pizzas is 441 units.
    • Therefore, Anna's total utility when she buys 4 salads and 4 pizzas is \(330 + 441 = 771\) units.

  2. Marginal Utility from the Fourth Salad:

    • Marginal utility is the additional utility gained from consuming one more unit of a good.
    • The total utility from 3 salads is 270 units, and from 4 salads is 330 units.
    • Therefore, the marginal utility from the fourth salad is \(330 - 270 = 60\) units.

  3. Marginal Utility per Dollar from Salads:

    • The marginal utility from the fourth salad is 60 units.
    • The price of a salad is $3.
    • Therefore, the marginal utility per dollar from salads is \(\frac{60}{3} = 20.0\) units per dollar.

Summary:

  • Anna's total utility when she buys 4 salads and 4 pizzas is 771 units.
  • Her marginal utility from the fourth salad is 60 units.
  • Her marginal utility per dollar from salads is 20.0 units per dollar.
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