3 years ago

How can i plus and subtract fractions

Mathematics

1 answer:

Alexandra [31]3 years ago

8 0

You would have to find a common denominator

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Help, with solving rational equations! I am no good at it :( Solve for x: 2 over 5 plus 3 over 5 x equals quantity x plus 5 over

mamaluj [8]

If this is your equation: $\frac{2}{5} + \frac{3}{5x} = \frac{x+5}{10}$
Solution:
LCD for 5 and 5x is 5x
$\frac{x}{x} ( \frac{2}{5} )+ \frac{3}{5x} = \frac{x+5}{10}$
$\frac{2x}{5x} + \frac{3}{5x} = \frac{x+5}{10}$
$\frac{2x+3}{5x} = \frac{x+5}{10}$
$10(2x+3)=5x(x+5)$ ←cross product
20x + 30 = 5x² + 25x ←simplify with distributive property
0 = 5x² + 5x - 30 ←use inverse operations to collect all terms on one side
0 = x² + x - 6 ←if possible divide by numerical GCF (This case 5)
0 = (x + 3)(x - 2) ←Factor
x = -3 or x = 2
Please check by substitution in original equation... Both work

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3 years ago

Select all ratios equivalent to 12:6.

melomori [17]

10:5 is the answer hope u get a good grade

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3 years ago

What is the distance formula?

alina1380 [7]

Answer:

Step-by-step explanation:

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2 years ago

Triangles A and B are similar.<br> If the slope of Y is 4/5 what's the slope of x?

sdas [7]

Similar triangle Hypotenuse must have similar slopes. If you'll notice, y & x are parallel lines, so they will have equivalent slope

In short, Your Answer would be 4/5

Hope this helps!

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3 years ago

Read 2 more answers

Help ASAP do both questions for 10 points

zlopas [31]

Answer:

Step-by-step explanation:

I'm guessing A and J. Makes the most sense.

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2 years ago