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jessica68224's Question
Math
Posted 7 months ago
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Working with the Properties of Mathematics
1) Which property is used in the following?
A. Commutative Property
C. None of the above
7×(3+4)=7×3+7×47 \times(3+4)=7 \times 3+7 \times 4
B. Associative Property
D. Distributive Property
2) Which equation shows the Commutative Property of Multiplication ?
A. 7×3=7+7+77 \times 3=7+7+7
B. 4×82×8=(42)×74 \times 8-2 \times 8=(4-2) \times 7
C. 9×5=5×99 \times 5=5 \times 9
D. 6×1=66 \times 1=6
3) Which of the following does not show the Commutative Property ?
A. 9+y=y+99+y=y+9
B. x+y=y+xx+y=y+x
C. yx=xy\mathrm{yx}=\mathrm{xy}
D. xy4=xyx y-4=x y
4) Which equation shows the Identity Property of Multiplication ?
A. a×1\mathrm{a} \times 1
B. (a+b)+6=a+(6+b)(a+b)+6=a+(6+b)
C. a+a+a=3×aa+a+a=3 \times a
D. a(b+c)=ab+aca(b+c)=a b+a c
5) Which is an example of Associative Property of Addition?
A. 5+0=55+0=5
B. 7+(7)=07+(-7)=0
C. 8+4=4+88+4=4+8
D. (4+2)+3=4+(2+3)(4+2)+3=4+(2+3)
6 ) Which property would you use to simplify the following expression ? 3(y+5)3(y+5)
A. Associative Property
B. Distributive Property
C
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Answer from Sia
Posted 7 months ago
Solution by Steps
step 1
The equation 7×(3+4)=7×3+7×47 \times (3 + 4) = 7 \times 3 + 7 \times 4 demonstrates the Distributive Property, as it shows how multiplication distributes over addition
step 2
The equation 9×5=5×99 \times 5 = 5 \times 9 illustrates the Commutative Property of Multiplication, which states that changing the order of the factors does not change the product
step 3
The equation xy4=xyx y - 4 = x y does not demonstrate the Commutative Property, as it involves subtraction and does not change the order of addition or multiplication
step 4
The equation a×1a \times 1 shows the Identity Property of Multiplication, which states that any number multiplied by 1 remains unchanged
step 5
The equation (4+2)+3=4+(2+3)(4 + 2) + 3 = 4 + (2 + 3) is an example of the Associative Property of Addition, which states that the way in which numbers are grouped does not change their sum
step 6
To simplify the expression 3(y+5)3(y + 5), we would use the Distributive Property, which allows us to multiply a single term by each term inside the parentheses
[1] Answer
D
[2] Answer
C
[3] Answer
D
[4] Answer
A
[5] Answer
D
[6] Answer
B
Key Concept
Understanding Mathematical Properties
Explanation
Mathematical properties such as Commutative, Associative, Distributive, and Identity help in simplifying and solving expressions and equations.

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