Using the following prices, calculate the unit price to determine how much it would cost for 7 muffins and 14 juice boxes.

Question

$7.74 for 6 muffins
$5.52 for 8 juice boxes
a.
$18.69
b.
$19.89
c.
$21.91
d.
$26.52

Answer 1

To find the total cost for 7 muffins and 14 juice boxes, we first need to calculate the unit price for muffins and juice boxes.

1. Calculating the unit price for muffins:

   • Cost for 6 muffins = $7.74
   • Unit price per muffin = \( \frac{7.74}{6} \)
   • Unit price per muffin = $1.29

2. Calculating the cost for 7 muffins:

   • Cost for 7 muffins = \( 7 \times 1.29 \)
   • Cost for 7 muffins = $9.03

3. Calculating the unit price for juice boxes:

   • Cost for 8 juice boxes = $5.52
   • Unit price per juice box = \( \frac{5.52}{8} \)
   • Unit price per juice box = $0.69

4. Calculating the cost for 14 juice boxes:

   • Cost for 14 juice boxes = \( 14 \times 0.69 \)
   • Cost for 14 juice boxes = $9.66

5. Calculating the total cost for 7 muffins and 14 juice boxes:

   • Total cost = Cost for 7 muffins + Cost for 14 juice boxes
   • Total cost = $9.03 + $9.66
   • Total cost = $18.69

Therefore, the total cost for 7 muffins and 14 juice boxes is $18.69.

The correct answer is a. $18.69.