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butalik [34]
3 years ago
6

An 8-pound bag of cement costs $12.73. What is the unit price, rounded to the nearest cent?

Mathematics
2 answers:
tester [92]3 years ago
8 0

Answer:

$1.60

Step-by-step explanation:

12.73÷8 = 1.59125

(1.59 rounded is 1.60)

storchak [24]3 years ago
8 0

Answer:

  $1.59 per lb

Step-by-step explanation:

What is a "unit price" depends on the unit of interest. Unit price tags on the shelf in a store are supposed to aid a shopper in determining the best value. In the situation described here. possible unit prices are ...

  cost per bag

  cost per pound

__

Obviously, the cost per bag is ...

  ($12.73)/(1 bag) = $12.73 per bag

The cost per pound will be ...

  ($12.73)/(8 lb) = $1.59125 /lb ≈ $1.59 per lb

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To solve we'll do the following; first solve for 'y' by applying the Pythagorean theorem in the second triangle, and finally solve for 'x' applying Pythagorean theorem in the first triangle.

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Now you solve the quadratic equation, you'll get a positive and negative value; as this are lengths, you take the positive and get:

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