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2 years ago

Algebra is very hard espc without teacher help - solve for x

Mathematics

1 answer:

ehidna [41]2 years ago

4 0

Answer:

In explanation

Step-by-step explanation:

First, we simplify the parentheses:

$(12x+16)-7x=(10x-20)+6$

Simplify:

$5x+16=10x-14$

Isolate x:

$30=5x$

Divide 5 by both sides

$x=6$

Hope this helped! Have a good day.

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GrogVix [38]

Answer:

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Step-by-step explanation:

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1 year ago

Which number line represents the solution set for the inequality 3(8-4x) < 6(x-5) ?

viktelen [127]

Answer:

Second number line(from top to bottom).

Step-by-step explanation:

We are given the following inequality:

$3(8 - 4x) < 6(x - 5)$

It is solved similarly to an equality, so:

$24 - 12x < 6x - 30$

$-18x < -54$

Multiplying by -1, the signal changes from < to >. So

$18x > 54$

$x > \frac{54}{18}$

$x > 3$

Thus the correct answer is given by the second number line.

7 0

3 years ago

The adult admission price to the amusement park increased from $35 last year to $42 this year.what is the rate of inflation?

Mrrafil [7]

Answer:7

Step-by-step explanation:

42-35=7

6 0

3 years ago

A farmer has one square mile land . If he divides his land into square fields that are 1/4 mile long and 1/4 mile wide,how many

White raven [17]

A square field that is 1/4 mile long and 1/4 mile wide has area

$\dfrac{1}{4} \cdot \dfrac{1}{4} = \dfrac{1}{16}$

So, to know how many of these fields fit in the biggest field, you have to divide their areas:

$\dfrac{1}{\frac{1}{16}} = 16$

So, if the farmer divides his land into square fields that are 1/4 mile long and 1/4 mile wide, he will have 16 of these smaller fields.

8 0

3 years ago

Which of the following is a polynomial with roots 3, 5i, and −5i?

jek_recluse [69]

$x_{1}=3 \\ \\ x_{2}=5i \\ \\ x_{2}=-5i \\ \\ f(x)=(x-x_{1})(x-x_{2})(x-x_{3})=(x-3)(x-5i)(x+5i)= \\ \\ =(x-3)(x^{2}+25)=x^{3}+25x-3x^{2}-75=x^{3}-3x^{2}+25x-75$

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6 0

3 years ago