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3 years ago

Six less than 3/4 of a number is the same as the number. Find the number.

Mathematics

1 answer:

kap26 [50]3 years ago

5 0

$x - 6 = \frac{3}{4} x \\ - 6 = \frac{ - 1}{4} x \\ x = 24$

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Write an equation that you can use to find the m

Ostrovityanka [42]

M =180 - 148-24 I THINK this shoud work

5 0

3 years ago

Triangle PQR has vertices at the following coordinates: P(0, 1), Q(3, 2), and R(5, -4). Determine whether or not triangle PQR is

vitfil [10]

Answer:

<h2>The triangle is not right triangle</h2>

Step-by-step explanation:

The steps in the above photo

I hope that is useful for you :)

7 0

3 years ago

Solve the following system of equations 2x – 3y = 6 4x+2y=4

FinnZ [79.3K]

Answer:

$\boxed{(\frac{3}{2} ,-1)}$

Step-by-step explanation:

$\left \{ {{2x-3y=6} \atop {4x+2y=4}} \right.$

It seems this system of equations would be solved easier using the elimination method (the x and y values are lined up).

Multiply everything in the first equation by -2 (we want the 4x to be able to cancel out with a -4x).

$2x-3y=6 \rightarrow -4x+6y=-12$

Now line up the equations (they are already lined up - convenient) and add them from top to bottom.

$\left \{ {{-4x+6y=-12} \atop {4x+2y=4}} \right.$

The -4x and 4x are opposites, so they cancel out.

Adding 6y and 2y gives you 8y, and adding -12 and 4 gives you -8.

$8y=-8$

Divide both sides by 8.

$y=-1$

Since you have the y-value you can substitute this in to the second (or first equation, it doesn't necessarily matter) equation.

$4x +2(-1)=4$

Simplify.

$4x -2=4$

Add 2 to both sides.

$4x=6$

Divide both sides by 4.

$x=\frac{6}{4} \rightarrow\frac{3}{2}$

The final answer is $x=\frac{3}{2} ,~y=-1$ .

$(\frac{3}{2} ,-1)$

5 0

3 years ago

Determine whether y varies directly with x. y-2x=0

skelet666 [1.2K]

hi, 
you can determine it by seeing if y/x = a constant value, in other words if y = (a constant value) x 
then you say that y varies directly with x, and you can see that : call the constant k 
then y/x is supposed to be k in all values 
6/3 = 2 
24/12 =2 
96/48 = 2 
384/192 = 2 
it worked the ratio between x and y is constant so y varies directly with x ( y = 2x) and that constant k =2 
p.s. you can also say that x varies directly with y but in that case it becomes x/y =constant and that constant say c is 1/2 (x = (1/2)y)) 
hope u understand.

Source- https://answers.yahoo.com/question/index?qid=20110813112602AApHZtQ

4 0

3 years ago

Read 2 more answers

Help me as quick as possible 11x+4y=12 9x-4y=8 Solve it with elimination method

Firdavs [7]

Answer:

x = 1, y = 1/4

Step-by-step explanation:

$11x + 4 y = 12 \ \ \ ---( 1)\\9x -4y = 8 \ \ \ - - - (2)\\\\(1) + ( 2 ) => 20x + 0 = 20\\\\$