2 years ago

Which equation represents a line parallel to the lines whose equation is y= 2x-7

Mathematics

1 answer:

Artemon [7]2 years ago

6 0

Y= 2x+7 would be the equation that represents a line parallel to the equation y= 2x-7.

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Choose the expression that represents a linear expression.

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Answer:

Step-by-step explanation:

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Then only the first option is in a linear expression format

9x-2

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3 years ago

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What would the answer be for this equation 7x/20 - 5x/12

polet [3.4K]

Answer:

$\frac{1}{15} x$

Step-by-step explanation:

$\frac{7x}{20} - \frac{5x}{12}$

$\frac{3 \times 7x}{3 \times 20} - \frac{5 \times 5x}{5 \times 12}$

$\frac{21x}{60} - \frac{25x}{60}$

$\frac{21x - 25x}{60} = (21 - 25)x = - 4x$

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$\boxed{\green{= \frac{1}{15} x}}$

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2 years ago

Six times a number increased by 20 is four less than eight times the number. Find the number

DaniilM [7]

Greetings!

"<span>Six times a number increased by 20 is four less than eight times the number. Find the number."...

This would be, as an equation:
</span> $6x+20=8x-4$

Solve:
Add 4 and -6x to both sides.
$(6x+20)+4+(-6x)=(8x-4)+4+(-6x)$
Simplify.
$24=2x$
Divide both sides by 2.
$(24)/2=(2x)/2$
Simplify.
$12=x$
$x=12$
<span>
x=12

Hope this helps.
-Benjamin

</span>

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3 years ago

What number best completes both equations

VikaD [51]

15/7 or 2 1/7 (same number but the first one is an improper fraction and the other is a mixed fraction)

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I made 2 calls and was on the phone for a total of 46 minutes. One call was 10 mins. longer than the other. How long was each c

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The one call that was ten min more is 56 min

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