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3 years ago

PLEASE HELP ME FOR 10 PTS

2 answers:

5 0

1. 49 * 0.06 = $2.94

He paid $2.94 in sales tax.

2. 20 * 0.06 = $1.20, $1.20 + $20.00 = $21.20

He paid $21.20 total for the basketball (including sales tax).

Rina8888 [55]3 years ago

3 0

1.Zachariah paid $51.94
2. Sam paid 21.20
Im not sure tho.

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Step-by-step explanation:

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3 years ago

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(1) Commutative property

(2) Distributive property/Definition of addition

(3) Compatibility with addition/Existence of additive inverse/Modulative property

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Step-by-step explanation:

We proceed to solve algebraically and explain each step:

1) $4\cdot x +1 +x + 3 = -11$ GIven

2) $4\cdot x +x +1 + 3 = -11$ Commutative property

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5) $5\cdot x +4 -4 = -11-4$ Compatibility with addition

6) $5\cdot x = -15$ Existence of additive inverse/Modulative property

7) $\frac{1}{5}\cdot (5\cdot x)= \frac{1}{5}\cdot (-15)$ Compatibility with multiplication

8) $x = - 3$ Associative property/Definition of division/Existence of additive inverse/Commutative and modulative properties/Result

Hence, we have the following answers:

(1) Commutative property

(2) Distributive property/Definition of addition

(3) Compatibility with addition/Existence of additive inverse/Modulative property

(4) Compatibility with multiplication/Associative property/Definition of division/Existence of additive inverse/Commutative and modulative properties/Result

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2 years ago

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Answer:

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Step-by-step explanation:

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