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atroni [7]
3 years ago
14

A book store is having a 30% off sale

Mathematics
1 answer:
Triss [41]3 years ago
8 0

Answer:

what is the question

Step-by-step explanation:

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Answer:

the answer is <em><u>X</u></em><em><u>=</u></em><em><u>-</u></em><em><u>3</u></em>

<em><u>1</u></em><em><u>)</u></em><em><u> </u></em><u>5</u><em><u>x</u></em><u>^</u><u>2</u><u>+</u><u>1</u><u>7</u><em><u>x</u></em><u>+</u><u>1</u><u>4</u><u>=</u><u>0</u>

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<em><u>3</u></em><em><u>)</u></em><em><u>2</u></em><em><u>5</u></em><em><u>x</u></em><em><u>+</u></em><em><u>1</u></em><em><u>7</u></em><em><u>x</u></em><em><u>=</u></em><em><u>-</u></em><em><u>1</u></em><em><u>4</u></em>

<em><u>4</u></em><em><u>)</u></em><em><u>4</u></em><em><u>2</u></em><em><u>x</u></em><em><u>=</u></em><em><u>-</u></em><em><u>1</u></em><em><u>4</u></em>

<em><u>5</u></em><em><u>)</u></em><em><u>4</u></em><em><u>2</u></em><em><u>x</u></em><em><u>/</u></em><em><u>-</u></em><em><u>1</u></em><em><u>4</u></em>

<em><u>6</u></em><em><u>)</u></em><em><u>x</u></em><em><u>=</u></em><em><u>-</u></em><em><u>3</u></em>

4 0
3 years ago
Help with this problem please !!!!!
Karolina [17]

Answer:

28

Step-by-step explanation:

Cross multiply

18k = 12 x 42

18 k = 504

   k = 504/18

   k = 28

3 0
4 years ago
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Answer:

Rational

Step-by-step explanation:

A rational number is any integer, fraction, terminating decimal, or repeating decimal.

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eduard

Answer:

the answer is 61.3

Step-by-step explanation:

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Bad White [126]

Answer:

<h2>50</h2>

Step-by-step explanation:

Put h = 7 to the expression 5 · (h + 3):

5\cdot(7+3)=5\cdot10=50

5 0
3 years ago
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