2 years ago

Write without the absolute value sign. |x-3| if x>4

1 answer:

lisabon 2012 [21]2 years ago

6 0

If x>4, then the quantity x-3 inside the absolute value symbol is already positive. So, in this case, |x-3| => x-3, and x-3 is all you need to write.

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What value from the set 10,11,12,13 that makes the equation 2(x-5)=12 true

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Answer:

Step-by-step explanation:

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3 years ago

If three people share1/2pound of peanuts equally how much will each have

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They would each have 1/6

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3 years ago

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The cost of 7 chairs and 2 tables is equal.If the cost of 6 chairs and 5 tables is 10575, find the cost of 12 chairs.

Igoryamba

Answer:

5400

Step-by-step explanation:

Let x represent the cost of a chair and y represent the cost of a table. We can use this to set up a system of equations:

7x=2y

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We can solve this system using substitution.

Start by rewriting the first equation in terms of x.

$7x=2y\\\text{Divide both sides by 7}\\x=\frac{2}{7}y$

Substitute this into the second equation:

$6(\frac{2}{7}y)+5y=10575\\\frac{12}{7}y+5y+10575\\\frac{12}{7}y+\frac{35}{7}y=10575\\\frac{47}{7}y=10575$

Multiply both sides by 7

$47y=74025$

Divide both sides by 47

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This means...

$7x=2(1575)\\7x=3150$

Divide both sides by 7

$x=450$

One chair costs 450. Now, multiply this number by 12 to find the cost of 12 chairs.

$450*12=5400$

12 chairs cost 5400.

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2 years ago

Which expression represents x less than 9? A. x−9 B. 9−x C.−9x−9 D. 9x−9

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3 years ago

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3 years ago