Question

Patrick spent a total of $29.82 for 14 paintbrushes, $31.84 for 16 drywall anchor screws, $27.15 for 12 light bulbs, and $36.54 for 18 pieces of sandpaper at his local hardware store. Which purchase had the highest per item cost?

A.
paintbrushes
B.
light bulbs
C.
sandpaper
D.
drywall anchor screws

Answer 1

To determine which item had the highest cost per item, the total cost was divided by the number of items for each type of product, resulting in the conclusion that light bulbs had the highest per item cost at $2.26 each.

Step-by-step explanation:

To find out which purchase had the highest per-item cost, we will calculate the cost per item for each purchase and compare them. The cost per item is found by dividing the total cost of the items by the number of items purchased. Following this approach, let's calculate:

• For paintbrushes: $29.82 ÷ 14 = $2.13 per paintbrush
• For drywall anchor screws: $31.84 ÷ 16 = $1.99 per screw
• For light bulbs: $27.15 ÷ 12 = $2.26 per light bulb
• For sandpaper: $36.54 ÷ 18 = $2.03 per sandpaper

Comparing these amounts, the light bulbs have the highest cost per item at $2.26 per light bulb.

Answer 2

Answer: Light bulbs.

Step-by-step explanation:

Paint Brushes: 29.82 ÷ 14 = $2.13 per brush.

Drywall Screws : 31.84 ÷ 16 = $1.99 per anchor screw.

Light Bulbs: 27.15 ÷ 12 = $2.26 per light bulb.

Sandpaper: 36.54 ÷ 18 = $2.06 per piece of sandpaper.