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3 years ago

Simplify (3x − 5) − (4x + 6).

Mathematics

1 answer:

irinina [24]3 years ago

3 0

(3x − 5) − (4x + 6)

Pretend that there is a 1 in front of the first bracket.

Pretend that there is a -1 in front of the second bracket.

Multiply the first bracket by 1

(1)(3x)=3x, (1)(-5)=-5

Multiply the second bracket by -1

(-1)(4)=-4, (-1)(6)=-6

3x-5-4x-6

3x-4x-5-6 ( combine like terms)

-x-11

Answer: -x-11 or -11-x

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100 points for correct answer

Tems11 [23]

Answer:

$\dfrac{x}{3}+\dfrac{3}{y}$

Step-by-step explanation:

<u>Given fraction</u>:

$\dfrac{xy+9}{3y}$

$\textsf{Apply the fraction rule} \quad \dfrac{a+b}{c}=\dfrac{a}{c}+\dfrac{b}{c}:$

$\implies \dfrac{xy}{3y}+\dfrac{9}{3y}$

Rewrite 9 as 3 · 3:

$\implies \dfrac{xy}{3y}+\dfrac{3 \cdot 3}{3y}$

Cancel the common factor y in the first fraction and the common factor 3 in the second fraction:

$\implies \dfrac{x\diagup\!\!\!\!y}{3\diagup\!\!\!\!y}+\dfrac{\diagup\!\!\!\!3 \cdot 3}{\diagup\!\!\!\!3y}$

$\implies \dfrac{x}{3}+\dfrac{3}{y}$

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6 months ago

Identify an equation in slope-intercept form for the line parallel to y = -3x + 7

svet-max [94.6K]

Answer:

Step-by-step explanation:

B and D are the only ones with the same slope (-3x) which is required for the line to be parallel.

and if you graph it out, you will find that B is the correct answer because it passes through (2,-4).

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2 years ago

I need help with This question

cupoosta [38]

Answer:

45% chance

Step-by-step explanation:

in the middle of 30% and 60% is 45 and that is the % chance it will rain on both days

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3 years ago

shopkeeper purchased a bicycle for rupees 5000 and marked its price a certain percent above the cost price then he sold it at 10

Gennadij [26K]

Lets say the final price of the bike is SP plus 13% VAT. So:

1.13 * SP = 6356.25

SP = 5625

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MP = 6250

Therefore, the percent of Marked Price above Cost Price is:

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Brilliant_brown [7]

Answer:

I believe that would be the rate..

Step-by-step explanation:

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2 years ago