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Alik [6]
2 years ago
8

A certain brand of coffee comes in two sizes. A 12.3-ounce package costs $2.99 . A 33.9-ounce package costs $8.74 . Find the uni

t price for each size. Then state which size is the better buy based on the unit price. Round your answers to the nearest cent.
Mathematics
2 answers:
aalyn [17]2 years ago
7 0

Answer:

12.3 - 33.9 = 21.6 \div 10 = 2.16

Gekata [30.6K]2 years ago
3 0
Answer is as follows, using A and B for the two package sizes

A) 12.3-ounce package costs $2.99 .
B) 33.9-ounce package costs $8.74 .

Find the unit price for each size.
A) 2.99 / 12.3 = .34 per ounce
B) 8.74 / 33.9 = .26 per ounce

The 33.9 ounce size is the better buy based on the unit price of .26 per ounce
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Westkost [7]

Answer:

The answer is 7/24.

Step-by-step explanation:

I attached a picture, but I'll try to walk through it here.

1) A negative and a negative makes a positive, so h becomes positive.

2) I added 7/8 to both sides, in order to "isolate the variable", which simply means to get h by itself, on one side of the equation (you'll likely hear it said both ways).

3) I multiplied 7/8 by 3/3, and multiplied -7/12 by 2/2. This is known as a common denominator, which in this case is 24. You can only add and subtract fractions that have a common denominator.

4) Multiply both of the fractions to get 21/24 + (-14/24). "Adding a negative" is the same thing as subtracting.

5) 21 - 14 = 7, and since our denominators are the same, the answer is 7/24.

You can confirm the answer by substituting, or "plugging" 7/24 into your original equation, in place of h.

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3 years ago
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seraphim [82]
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3 years ago
Read 2 more answers
What are three numbers that have a value between 3/6 and 3/8?​
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Step-by-step explanation:

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Step-by-step explanation:

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