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3 years ago

What is {Y=X-1 {4x=y+19

Mathematics

1 answer:

Elina [12.6K]3 years ago

5 0

4x=x-1+19 -> 4x=x+18 (then you minus 1x from both sides) -> 3x=18; x=6

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What's the inverse operation of division

Mekhanik [1.2K]

Answer:

multiplication

Step-by-step explanation:

3 0

4 years ago

B(4, 0) and c(10, 4) are the endpoints of a line segment. what is the midpoint m of that line segment? answer

Lilit [14]

The midpoint formula is $Midpoint: ( x_{m} , y_{m} )=( \frac{sum of x coordinates}{2} , \frac{sum of y coordinates}{2} )$

Therefore,
$x_{m}= \frac{4+10}{2} =7$
$y_{m}= \frac{0+4}{2} =2$

Answer: (7,2)
You could also plot the points and fold the paper so the points are on top of each other. Make a crease in the paper and when you open it the point where the crease intersects the segment is the midpoint.

8 0

4 years ago

For what of X do the expression 2x +3 and 3x-6 have the same value

Llana [10]

Answer:

x=9

Step-by-step explanation:

2(9)+3

18+3=21

3(9)-6

27-6=21

when you plug in 9 for the x variable you will get the same end value

3 0

3 years ago

Find the values of the variables.

icang [17]

Answer:

x=8

z=132

Step-by-step explanation:

We know that 6x and 4x+16 are vertical angles, so they are equal

6x= 4x+16

Subtract 4x from each side

6x-4x = 4x-4x+16

2x =16

Divide each side by 2

2x/2 =16/2

x =8

We also know that 6x and x form a straight line

6x+z = 180

6(8) + z =180

48+z =180

Subtract 48 from each side

48-48 +z =180-48

z = 132

7 0

3 years ago

You have a box containing 6 white, 4 red, and 8 black marbles. You pick a marble and it is red. You then pick a white marble. On

Artemon [7]

If you initially have 6 W, 4 R, and 8 B, and you take away two whites and a red, then you have 4W, 3 R and 8 B. There are 15 marbles total, and 8 black marbles, so you have an 8 in 15 or 53% chance of picking a black marble.

6 0

3 years ago

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