MATHEMATICS MIDDLE SCHOOL

What property is this? 1. 2(4+3−6) = 2×4+2×3−2×6
Commutative Property

Associative Property

Distributive Property

Identity Property

Zero Property

What property is this?
2. 7000×1=7000
Distributive Property

Zero Property

Identity Property

Commutative Property

Associative Property

What property is this?
3. 3×(7×1)=(3×7)×1
Distributive Property

Zero Property

Associative Property

Commutative Property

Identity Property

What property is this?
4. 48×0=0
Commutative Property

Distributive Property

Identity Property

Associative Property

Zero Property

What property is this?
5. 4×2×1×9=9×1×2×4
Commutative Property

Identity Property

Zero Property

Associative Property

Distributive Property

Answers

Answer 1
Answer:

1. Distributive (the 2 is distributed)

2. Identity (multiplying by 1 doesn't change the number)

3. Associative (parentheses can move)

4. Zero (multiplying by 0 = 0)

5. Commutative (you can multiply in any order)
Answer 2
Answer:

Question: What property is this?

Answers:

1. Distributive the 2 is distributed to everything

2. Identity multiplying by 1

3. Associative parentheses move

4. Zero multiplying anything by 0 = 0

5. Commutative order multiplied doesn't matter

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Which describes the relationship between 20,000 and 200,000

Answers

2 and because theu are in the thousands and hundreds

Express in scientific notation: 215,000,000    a.2.15x10^8   b.21.5x10^7   c. 215x10^6d.215x1,000,000  e.0.215x10^9

Answers

2\underbrace{15\ 000\ 000}_(\leftarrow8)=2.15000000\cdot10^8=2.15\cdot10^8\n\n\nAnswer:A




scientific\ notation:\ a\cdot10^n\ and\ a\in < 1;\ 10);\ n\in\mathbb{Z}\n\nB.\ 21.5\cdot10^7\to21.5 > 10\n\nC.\ 215\cdot10^6\to215 > 10\n\nD.\ 215\cdot1,000,000\to215 > 10\ and\ no\ 10^n\n\nE.\ 0.215\cdot10^9\to0.215 < 1

Sarabeth ran 1 2/5 miles on a path around the park. This was 5/8 of the distance around the park. What is the distance around the park.

Answers

5/8 ------------------------- 7/5 miles
1/8 ------------------------- 7/5÷5 = 7/25 miles
8/8 ------------------------- 7/25 x 8 = 56/25 = 2.24 miles

132 stickers and 25 students. How many stickers left over

Answers

I got pretty much 5 stickers for each student. does it give you answers or do you have to fill in the answer?
The answer is 107 all you have to do is subtract

Who can help me with #39 please:))))

Answers

The answer to the problem is D

35  : 15 is the same as 7 : 3

How to solve 3n+9=7n-15

Answers

Simplifying3n + 9 = 7n + -15
9 + 3n = 7n + -15
9 + 3n = -15 + 7n
9 + 3n = -15 + 7n

9 + 3n + -7n = -15 + 7n + -7n
3n + -7n = -4n9 + -4n = -15 + 7n + -7n
7n + -7n = 09 + -4n = -15 + 09 + -4n = -15
9 + -9 + -4n = -15 + -9
9 + -9 = 00 + -4n = -15 + -9-4n = -15 + -9
-15 + -9 = -24-4n = -24
Divide each side by -4
n = 6 
The answer to this problem is 6
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Which is greater 2/5 or 2/6
Solve and check 2/3y =6 A.1/9 B.1/4C.9D.4