Question

30.

Find each unit price. Which is the better buy? Explain.

Electrical wire: $1.49 for 3 ft.
$.69 for 18 in
(4 points)

Answer 1

3 ft = 36 inches

Answer 2

So

$1.49 for 3 ft.

is the same as saying

$1.49 for 36 inches

Answer 3

1) Unit Price: $1.49/36 inches = 0.04138 = 0.04 = 4 cents per inch

2) Unit Price: $0.69/18 inches = 0.03833 = 0.04 = 4 cents per inch

So after rounding, the two have the same unit price.

Answer 4

ok thank

Answer 5

np