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Biblioteka

Int.1A-Ls-2.02-2.03

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Posljednje ažuriranje almost 6 years ago
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Pitanje 1
1.

Suppose a pepperoni pizza should bake 7 minutes longer than a plain pizza. If a small plain pizza should bake for 12 minutes, how long should you bake a small pepperoni pizza?

MP.1
1
Pitanje 2
2.

If a large plain pizza should bake for m minutes, how long should you bake a large pepperoni pizza?

Pitanje 3
3.

Write the step by step instructions to solve this problem: -3(4-x)

Pitanje 4
4.

Toby writes an expression using the following steps.

• Start with x.

• Multiply by -2.

• Subtract 7.

• Subtract 12.

He writes the final expression -2(x – 7) – 12. Explain what he did wrong. Then find the correct expression.

Pitanje 5
5.

James says, “Start with -3. Add 5. Multiply by -4. Subtract 3.” What is your ending number?

Pitanje 6
6.

Start with 10. Add 5. Multiply by -4. Subtract 3. What is your ending number?

Pitanje 7
7.

Start with m. Add 5. Multiply by -4. Subtract 3.” What is your ending number?

Pitanje 8
8.

Start with 0. Add 5. Multiply by -4. Subtract 3.” What is your ending number?

Pitanje 9
9.

Evaluate (3x + 5x – 6x + 2x)/ x for x=6.

Pitanje 10
10.

Evaluate (3x + 5x – 6x + 2x)/ x for x=22.

Pitanje 11
11.

Evaluate (3x + 5x – 6x + 2x)/ x for x=-13.

Pitanje 12
12.

You have a tube that can be stretched or compressed. As you change the length of the tube, the density d of the gas inside the tube and the volume V change according to the expression d=100/V. Find the density of the gas for each of the following volumes given in cubic units. Volume = 1

Pitanje 13
13.

You have a tube that can be stretched or compressed. As you change the length of the tube, the density d of the gas inside the tube and the volume V change according to the expression d=100/V. Find the density of the gas for each of the following volumes given in cubic units. Volume = 50

Pitanje 14
14.

Jessica evaluates the expression 3x – 2 for x = 5 and x = 2.

When x = 5, she gets 3x – 2 = 3 × (5 – 2) = 3 × 3 = 9.

When x = 2, she gets 3x – 2 = 3 × (2 – 2) = 3 × 0 = 0.

What did Jessica do wrong?

Pitanje 15
15.

What is the correct answer for the question above when x=5