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4 years ago

HELP ASAP! 20 POINTS! 5 QUESTIONS!

Mathematics

1 answer:

Ainat [17]4 years ago

6 0

Answer:

1. Let the unknown number be x

The phrase “8 and” means addition so that’s 8 +

5 times a number is multiplication so that’s 5 times x, or simply, 5x

So the correct equation would be 8 + 5x = 43

And the correct value for variable x is 7

8 + 35 = 43

2. A

3. Here we can see that there has to be a single unknown variable and using that variable we have to create an equation. That equation will ultimately help us to find the exact value of the variable. This way we can easily reach the answer that is asked in the question.

Let us assume the length of the first piece = x

Length of the second piece = 2x

Length of the third piece = 6x

Now we can get to the equation

x + 2x + 6x = 180

9x = 180

x = 180/9

= 20

So the length of the first piece of the board is 20 feet.I hope i have explained the problem to your satisfaction and understanding

4. C

5. B

Step-by-step explanation:

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3 years ago

What is 0.17 in standard form?

Vladimir [108]

17 x 10 ^-2

*^-2 is a indicies*

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3 years ago

Read 2 more answers

What is the classification of each system? Drag the answers into the boxes to match each system. {4x−2y=102x−y=5 {y=2x−3−2x y=−5

Rus_ich [418]

1. 4x − 2y = 10 and 2x − y = 5

Lines are coincident.

2. y = 2x − 3 and −2x + y = −5

Lines are parallel.

3. 2x − 5y = 14 and 3x + 4y = 10

Lines are intersecting.

<h2>Linear system</h2>

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

<h3>Given</h3>

1. 4x − 2y = 10 and 2x − y = 5

2. y = 2x − 3 and −2x + y = −5

3. 2x − 5y = 14 and 3x + 4y = 10

<h3>Condition for the lines.</h3>

$\rm \dfrac{a_1}{a_2} \neq \dfrac{b_1}{b_2} \ \ \ \ \ \ \ \ \ \ \ Lines\ are\ intersecting\\\\\rm \dfrac{a_1}{a_2} = \dfrac{b_1}{b_2} \neq \dfrac{c_1}{c_2}\ \ \ \ Lines \ are\ parallel\\\\\rm \dfrac{a_1}{a_2} = \dfrac{b_1}{b_2} = \dfrac{c_1}{c_2} \ \ \ \ Lines\ are\ coincident$

<h3>Drag the answers into the boxes to match each system.</h3>

1. 4x − 2y = 10 and 2x − y = 5

Lines are coincident.

2. y = 2x − 3 and −2x + y = −5

Lines are parallel.

3. 2x − 5y = 14 and 3x + 4y = 10

Lines are intersecting.

More about the linear system link is given below.

brainly.com/question/20379472

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2 years ago

Whats the definition of the a square root ?

Andreyy89

Its like abundance (quantity ) of which is called amplitude (quantity) of the particular square

Good Day / Night

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3 years ago

You manage a call center that processes orders. One measure of efficiency in your department is the time spent on each call. You

siniylev [52]

Answer:

The answer is option A.

Step-by-step explanation:

If the report is made once a month, the daily variations (including the tendency to decrease efficiency on Friday) will be masked within the monthly result.

It would only generate an ethical problem in the case that Fridays fall in different samples, but in the case of the monthly report there are usually 4 or 5 Fridays included in each sample.

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4 years ago