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aleksklad [387]
4 years ago
9

Tammy paid $12.98 for a 6.35-kg bag of dog food. A few weeks later, she paid $14.88 for a 7.03-kg bag at a different store.

Mathematics
1 answer:
lozanna [386]4 years ago
4 0

Answer:

(a)$2.04 per kg

(b)$2.12 per kg

(c)First Bag

Step-by-step explanation:

<u>1st Bag</u>

Tammy paid $12.98 for a 6.35-kg bag of dog food.

\text{Unit Price (Price per Kg)}=\dfrac{\$12.98}{6.35kg} =\$2.04 \text{ per kg}

<u>2nd Bag</u>

At a different store, she paid $14.88 for a 7.03-kg bag .

\text{Unit Price (Price per Kg)} =\dfrac{\$14.88}{7.03kg} =\$2.12 \text{ per kg}

The first bag is better as it is cheaper.

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DanielleElmas [232]

Answer:

So, The possible values of h and r are

1. r = 3 , h = 3

2. r = 1, h = 27

3. r = 2, h = 6.75

Step-by-step explanation:

P.S - The exact ques is -

As we know that Volume of cone , V = \frac{1}{3}\pi r^{2}h

As given,

V = 9\pi

⇒\frac{1}{3}\pi r^{2}h = 9\pi \\  \frac{1}{3} r^{2}h = 9 \\r^{2}h = 27

So,

The possible values of h and r are

1. r = 3 , h = 3

2. r = 1, h = 27

3. r = 2, h = 6.75

In Case I-

When r = 3, h = 3

(3)² ×3 = 9×3 = 27

Satisfied

Case II-

r = 1, h = 27

(1)²×27 = 1×27 = 27

Satisfied

Case III-

r = 2, h = 6.75

(2)²×6.75 = 4×6.75 = 27

Satisfied

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3 years ago
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Answer:

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Step-by-step explanation:

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