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3 years ago

Help me I don't know the answer & im gonna fail

Mathematics

1 answer:

blagie [28]3 years ago

7 0

Number 8 would be answer B

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5x+20y=4<br> x=-4y+1<br><br> Solve for x/y

Andrews [41]

Hi there!

Looks like a lot of work is going on here.

Let's start by solving this equation for the x.

$5x + 20y = 4$

Step 1) Add -20y to both sides.

$5x + 20y + - 20y = 4 - 20y 5x = -20y + 4$

Step 2) Divide both sides by 5.

$\frac{5x}{5} = \frac{-20y + 4}{5}$

$x = -4y + \frac{4}{5}$

Final Answer:

$x = -4y + \frac{4}{5}$

Now, let's solve for y.

Step 1) Add -5x to both sides.

$5x + 20y + - 5x = 4 + - 5x 20y = -5x + 4$

Step 2) Divide both sides by 20.

$\frac{20y}{20} = \frac{-5x + 4}{20}$

$y = \frac{-1}{4} x + \frac{1}{5}$

Final Answer:

$y = \frac{-1}{4} x + \frac{1}{5}$

Hope this helps! :D

Hint - When you have two variables in an equation, and you want to solve for one, the other will end up in your answer. :)

6 0

3 years ago

Help me please need it fast

Sonja [21]

Answer:I am pretty sure it is A

Step-by-step explanation:

6 0

3 years ago

which digit can replace the? to make this number sentence true 736,554 < 7?6,573 < 736,589 only one answer

mars1129 [50]

You need 3 for ? to make this sentence true, because if you place 3 for ?, 736,554<736,573<736,589 makes sense. If you compare the three numbers, 736,554 is the smallest, then 736,573, and 736,587 is the biggest number.
Hope this answered your question!

8 0

3 years ago

Which of the following statements about the points (-4,6) and (4,-6) are true

gtnhenbr [62]

Answer:

Step-by-step explanation:

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3 years ago

43 ÷ (-7) i need a answer quick

vlabodo [156]

Answer:

look it up my guy

Step-by-step explanation:

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3 years ago

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