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Difficulty: MediumDecimal Operations and Currency Word Problems

A culinary specialist is ordering fresh provisions for a field kitchen. He orders 18.518.5 pounds of ground beef at $4.20\$4.20 per pound and 2424 pounds of potatoes at $0.75\$0.75 per pound. What is the total cost of these provisions?

  1. A
    $77.70\$77.70
  2. $95.70\$95.70Answer
  3. C
    $78.45\$78.45
  4. D
    $25.77\$25.77

Answer

The total cost of the provisions is $95.70\$95.70.
The total cost is calculated by multiplying the quantity of each item by its respective unit price, and then adding the two subtotals together. The ground beef costs 18.5×$4.20=$77.7018.5 \times \$4.20 = \$77.70. The potatoes cost 24×$0.75=$18.0024 \times \$0.75 = \$18.00. Adding these amounts together gives a final total of $95.70\$95.70.

Step-by-Step Solution

1
Calculate the total cost of the ground beef by multiplying the weight by the price per pound.
18.5×$4.20=$77.7018.5 \times \$4.20 = \$77.70
To find the subtotal for the first provision item.
2
Calculate the total cost of the potatoes by multiplying the weight by the price per pound.
24×$0.75=$18.0024 \times \$0.75 = \$18.00
To find the subtotal for the second provision item.
3
Add the two subtotals together to find the final overall cost.
$77.70+$18.00=$95.70\$77.70 + \$18.00 = \$95.70
To determine the combined total cost of the purchase.

Key Concept

Multiplying decimals to find itemized costs and adding the resulting subtotals to find a final sum.
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Topics

Decimal Operations and Currency Word Problems

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