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2 years ago

How are equivalent fractions used when subtracting unlike fractions?

Mathematics

2 answers:

Alex73 [517]2 years ago

5 0

They are used because u need a common denominator <span />

neonofarm [45]2 years ago

4 0

When you subtract unlike fractions so you need a common denoimeter

Example:

1/2-3/4

1/2= to 2/4

3/4 - 2/4=1/4

Answer: 1/4

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Hi!!!! Can someone please help me answer this math question??

GalinKa [24]

The shortcut is the hypotenuse of a right triangle with legs 6 and 8, so 6²+8²=c²

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2 years ago

Solve the system of equations by graphing. x+y=-9 4x+y=-19

shutvik [7]

For this case we have the following system of equations:

$x + y = -9\\4x + y = -19$

We multiply the first equation by -4:

$-4x-4y = 36$

We have the following equivalent system of equations:

$-4x-4y = 36\\4x + y = -19$

We add the equations:

$-4x + 4x-4y + y = 36-19\\-3y = 17\\y = - \frac {17} {3}$

We find the value of the variable "x":

$x = -9-yx = -9 - (- \frac {17} {3})\\x = -9 + \frac {17} {3}\\x = \frac {-27 + 17} {3}\\x = - \frac {10} {3}$

Thus, the solution of the system is:

$(x, y): (- \frac {10} {3}, - \frac {17} {3})$

See the graphic in the attached image

ANswer:

$(x, y): (- \frac {10} {3}, - \frac {17} {3})$

See the graphic in the attached image

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3 years ago

The answers are, s=0.20p

larisa86 [58]

Answer:

s=0.20p

Step-by-step explanation:

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2 years ago

The green line below

kenny6666 [7]

Answer:

B, C, D, & E

Step-by-step explanation:

All lines intersect the x axis and y axis so we know B and D are correct. All graphs are in the xy plane unless i ( $\sqrt{-1}$ ) is involved, or C. It crosses the center (origin) of the entire plane so it crosses the origin, or E.

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3 years ago

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