3 years ago

Help me please!!!!!!!!!

Mathematics

1 answer:

iVinArrow [24]3 years ago

7 0

The answer is letter c

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8xy= 2(2x + y) solve for y

STatiana [176]

Answer: $\displaystyle y= \frac{2\text{x}}{4\text{x} - 1}$

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Work Shown:

$8\text{x}y= 2(2\text{x} + y)\\\\8\text{x}y= 4\text{x} + 2y\\\\8\text{x}y - 2y= 4\text{x}\\\\y(8\text{x} - 2)= 4\text{x}\\\\y= \frac{4\text{x}}{8\text{x} - 2}\\\\y= \frac{2*2\text{x}}{2(4\text{x} - 1)}\\\\y= \frac{2\text{x}}{4\text{x} - 1}\\\\$

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Explanation:

The idea is to first get all the y terms to one side. I did this by subtracting 2y from both sides in the third step.

Then factor out y and divide both sides by (8x-2)

Afterward there's the optional steps of simplifying (as shown in the final two steps).

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2 years ago

What is the slope of the line given by the following equation? Give an exact number. -13x 5y=-7

Black_prince [1.1K]

The slope should be 13/5x

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3 years ago

If you pick a card at random from a well shuffled deck, what is the probability that you get a face card or a spade?

tankabanditka [31]

P(Face card) =16/52 = 4/13
P(Spade) = 13/52 =1/4
P(Face ∪ Spade) = 4/13 + 1/4 = 29/52 = 0.557

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3 years ago

Erik pays $225 in advance on his account at the athletic club. Each time he uses the club, $9 is deducted from the account. Writ

guajiro [1.7K]

Answer:

Step-by-step explanation:

225-9x=v

225-9(7)=v

225-63=v

162=v

your answer is A

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2 years ago

Using the number line below to compare the list of numbers. Place the numbers in increasing order.

Ivanshal [37]

Answer:

-2/5

-1.5

1 4/5

Step-by-step explanation:

The higher the negatice number, the lower it is. Hope this helps:)

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2 years ago