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MrRa [10]
4 years ago
6

HELP ME

Mathematics
2 answers:
Andrew [12]4 years ago
7 0
\frac{3}{5}=\frac{x}{x+2y}\ \ \ \ \ |cross\ multiply\\\\3(x+2y)=5(x)\\3(x)+3(2y)=5x\\3x+6y=5x\ \ \ \ \ |subtract\ 3x\ from\ both\ sides\\6y=2x\\2x=6y\ \ \ |divide\ both\ sides\ by\ 2\\x=3y\ \ \ \ |divide\ both\ sides\ by\ y\\\boxed{\frac{x}{y}=3}
harkovskaia [24]4 years ago
7 0
3/5=x/(x+2y)
multiply both side by x+2y
x=3/5 x (x+2y)
x=3x/5 + 6y/5
x=(3x+6y)/5
multiply both side by 5
5x=3x+6y
subtract both side by 3x
2x=6y
simplify both side by 2
x=3y
divide both side by y
x/y=3
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Answer:

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Step-by-step explanation:

8 0
3 years ago
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77julia77 [94]

Answer:

12.56m

<h3>4th answer is correct</h3>

Step-by-step explanation:

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5 0
4 years ago
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Licemer1 [7]

Answer:

520 - 303.93 - (10.99 * 4) - 25.25 - 73.43x ≥ 0

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1) Parentheses

520 - 303.93 - 43.96 - 25.25 - 73.43x ≥ 0

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2) Combine like terms

146.86 - 73.43x ≥ 0

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3) Get the variable term alone

-73.43x ≥ -146.86

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4) Divide to solve

x ≤ 2

** dividing by a negative number, the inequality sign flips **

ANSWER :

x ≤ 2

8 0
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The model represents the equation <br> 4x+ 4 = 12<br> What value of x makes the equation true
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Answer:

B

Step-by-step explanation:

All you have to basically do on this one is go backwards.

The beginning equation is 4x+4=12, so to first revesre the adding we are going to use 12, the product, and subtract 4 from it (since that is what was added).

12-4=8

Now you need to reverse the times 4, so to do that just divide instead because that is the invese of multiplication.

8/4=2

Now you have 2, which is the variable, x. To make sure this is right you can just put it into the equation and see if 4x2+4 is 12

Hope this helped!

6 0
2 years ago
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aliina [53]

Answer:

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