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sergiy2304 [10]
2 years ago
8

((2x^2+5x-3)/(1-4x^2))/((x^3-9x)/(x^4-6x^3+9x^2)) FIND X

Mathematics
1 answer:
nydimaria [60]2 years ago
6 0

You can't find a value of x since there is no equal sign. This is not an equation. It is just an expression, so you can't solve it for x.

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Samantha evaluates the expression -5.3 + 7.9 and gets an answer of 2.4
Sholpan [36]

Answer:

Step-by-step explanation:

To the evaluate -5.3+7.9

We get

2.6

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2 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

6x+5y=10575

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

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47y=74025

Divide both sides by 47

y=1575

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
If elephant grass grows 2 1/5 inches a day, how many inches will it grow in 5 days?
Sonja [21]

I hope this helps you

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3 years ago
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2/4x1/2= what does it equal
nikklg [1K]

Answer:

0.25

Step-by-step explanation:

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