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3 years ago

8

Explain how you could use a number line to show that -4 + 3 and 3 + (-4) have the same value. Which property of addition states

that these sums are equivalent?

2 answers:

gtnhenbr [62]3 years ago

8 0

I would say commutative.

swat323 years ago

6 0

I would say it is commutative too

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A taxi charges 2.50 plus .50 fee for each mile. If the ride costs 7.50 how many miles did he travel

NeX [460]

Answer:<em> 10 miles</em>

Step-by-step explanation:

<em>Mile 1: 3.00</em>

<em>Mile 2: 3.50</em>

<em>Mile 3: 4.00</em>

<em>Mile 4: 4.50</em>

<em>Mile 5: 5.00</em>

<em>Mile 6: 5.50</em>

<em>Mile 7: 6.00</em>

<em>Mile 8: 6.50</em>

<em>Mile 9: 7.00</em>

<em>Mile 10: 7.50</em>

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3 years ago

Record your<br> ! 1)<br> 5x = 125

KengaRu [80]

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3 0

3 years ago

Help me pleeeeeeeeeaze

kobusy [5.1K]

$a(x+3) < 5x+15-x\\\\ax+3a < 5x+15-x\\\\ax+3a < 4x+15\ \ \ |-3a\\\\ax < 4x+15-3a\ \ \ \ |-4x\\\\ax-4x < 15-3a\\\\(a-4)x < 15-3a\\\\\text{The solution is all real numbers if}\ a-4=0\ \ \ |+4\\\\\boxed{a=4}\\\\\text{Check:}\\\\4(x+3) < 5x+15-x\\4x+12 < 4x+15\ \ \ \ |-4x\\12 < 15\ TRUE\to x\in\mathbb{R}$

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3 years ago

What is the logical form of:

exis [7]

Basically saying u can divide any number by 2 and 3 but not 4

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3 years ago

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2 years ago