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2 years ago

Hi I need help with this question 2 1/7+3/7(3x-5)=-4

Mathematics

1 answer:

olya-2409 [2.1K]2 years ago

5 0

An equation is formed of two equal expressions. The value of x is -28/9.

<h3>What is an equation?</h3>

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The given expression can be simplified as,

$2 \frac17+\dfrac37(3x-5)=-4\\\\\dfrac{15}{7} + \dfrac{9x-15}{7} = -4\\\\ \dfrac{15+9x-15}{7} = -4\\\\9x = -28\\\\x = \dfrac{-28}{9}$

Hence, the value of x is -28/9.

Learn more about Equation:

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A man weighs 180 lb. He jogs a mile in 8 minutes. How many calories has he used up?

s2008m [1.1K]

Calories used = Activity level*Weight*Duration

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Weight = 180/2.2 = 81.81 kg
Duration = 8 minutes

Substituting;
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3 years ago

Which of the following rational numbers is equal to 4 point 7 with bar over 7 ? (5 points) 43 over 9 , 49 over 9 , 35 over 9 , 3

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Answer:

43 over 9 is the fraction you are looking for.

Step-by-step explanation:

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3 years ago

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Mary types 3 pages in 12 minutes. If she continues this same speed, How many pages should she type in 60 minutes? Show your work

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3 years ago

HELP! i’m confused! question is in the picture

TEA [102]

Answer:

[-6,-3]

Step-by-step explanation:

So we have the compound inequality:

$2x+7\leq x+4\leq 3x+16$

Let's solve for each of the inequalities:

We have:

$2x+7\leq x+4$

Subtract x from both sides:

$x+7\leq 4$

Subtract 7 from both sides:

$x\leq -3$

So that's one of our answers.

We have:

$x+4\leq 3x+16$

Subtract 3x from both sides:

$-2x+4\leq 16$

Subtract 4 from both sides:

$-2x\leq 12$

Divide both sides by -2. Since we're dividing by a negative, flip the sign:

$x\geq -6$

Therefore, our entire answer is:

$-6\leq x\leq -3$

This means all values in between -3 and -6 including -3 and -6.

In interval notation, this is:

$[-6,-3]$

So, A is -6.

And B is -3.

And we're done :)

4 0

3 years ago