7x+7+2z+9= please help me

Step-by-step explanation:

For two lines to be parallel they must have the same slope that is,M1=M2

For two lines to be perpendicular the slope of one must be the negative reciprocal of the other

Let's first find the slope of all three lines.

For line 1

6x-6=10y

2/5x-2/5=y

slope=2/5

For like 2

slope=5/3

For line 3

y=5/3x+2/3

We can therefore say that:

line 1 and line2 are neither parallel nor perpendicular

line 1 and line 3:

neither parallel nor perpendicular

line 2and line 3:

parallel lines

Answer:

11/20 is a simplified fraction for 55/100

Answer:

A. It is the result of the photoelectric effect.

Step-by-step explanation:

Answer:A

Step-by-step explanation:

Answer:

15 and 3 is the answer

Step-by-step explanation:

15+3=18

15-3=12

Answer:

w=0

Step-by-step explanation:

We know a point (3,1) and the slope (-8/3), so we can use point-slope form, which is y-y1=m(x-x1)

For reference, y1 is the y in the point, m is the slope, and x1 is the x in the point

So we subsitute it

y-1=-8/3(x-3)

do distributive prop.

y-1=-8/3x+8

add 1 to both sides

y=-8/3x+9

This is the equation of the line.

Now to find w, which is the x value.

The point will pass through line, so we can susbtitute the point into the equation.

9=-8/3x+9

subtract 9 from both sides

0=-8/3x

multiply by -3/8 on both sides (the reciprocal of -8/3), we need to isolate x

0=x

x=w

therefore, w=0

Hope this helps!

Answer:

x = 4

Step-by-step explanation:

4(2x - 5) = 5x - 8

Distribute 4: 8x - 20 = 5x - 8

Add 20 to both sides: 8x = 5x + 12

Substract 5x from both sides: 3x = 12

Divide both sides by 3: x = 4

Answer:

B. <

Step-by-step explanation:

The whole parts are equal since they are both 9.

We just need to compare the fractions 3/8 and 5/7.

The LCD is 8 * 7 = 56

3/8 = 21/56

5/7 = 40/56

3/8 < 5/7

9 3/8 < 9 5/7

Answer:

Numerator :)

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

Always do multiplication first:

6*4 = 24

(-2)(4) = -8

Note: A negative times a positive always equals a negative

After multipying, do addition:

24+ (-8) = 24-8 = 16

Answer:

k = -2

Step-by-step explanation:

8 = -4k

8 / -4 = k

k = -2

Answer:

Jordyn spent $17 at the fair.

Step-by-step explanation:

From the information given, you know that the amount spent at the fair would be equal to the entrance fee plus the result of multiplying the price for every ride for the number of rides, which could be express as:

Total amount=5+2x, where:

x is the number of rides

With this formula, you can find the amount that Jordyn spent at the fair if she paid for admission and to go on 6 rides by replacing x with 6:

Total amount=5+(2*6)

Total amount=5+12

Total amount=17

According to this, the answer is that Jordyn spent $17 at the fair.

Answer:

C. 1.87

Step-by-step explanation:

3.5x - 2.8 = -4.67x + 12.5

3.5x + 4.67x = 12.5 + 2.5

8.17x = 15.3

x = 15.3 ÷ 8.17

x = 1.87270501836

So, the closest choice to 1.87270501836 is 1.87, so the answer is C.

Hence, the answer would be C. 1.87. I am 100% sure on this, for I am a pro.

Answer:

x=-2 and y=3

Step-by-step explanation:

hope this helps!

Answer:

The Temperature at 7PM

Step-by-step explanation:

Answer:

3 on the other side and 7 and 7 on the sides

Step-by-step explanation:

Answer:

Love you too

As a friend :)

Answer:

x = ± [tex]\sqrt{\frac{p}{m} }[/tex]

Step-by-step explanation:

Given

mx² = p ( divide both sides by m )

x² = [tex]\frac{p}{m}[/tex] ( take the square root of both sides )

x = ± [tex]\sqrt{\frac{p}{m} }[/tex]

Answer:

first one is: y=-2^×+4

second one is:2^×4

third one is:3y=2^×-4

fourth one is:y=-2^×+4

Step-by-step explanation:

i think so

good luck

Answer: 216

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

Answer:

its number 2

Step-by-step explanation:

Answer:

Number of small candles = 12

Number of large candles = 16

Step-by-step explanation:

Total candles = 28

x + y = 28 ---------------(I)

Cost of 'x' small candles = 4 *x = 4x

Cost of 'y' large candles = 6 *y = 6y

Total amount = $144

4x + 6y = 144 -------------(II)

Multiply equation (I) by (-4) and then add the equation. So, x will be eliminated and we can find the value of 'y'

(I) * (-4)            -4x - 4y = -112

(II)                    4x  + 6y = 144              {Now, add}

                              2y = 32

                               y = 32/2

y = 16

Plug in y = 16 in equation (I)

x + 16 = 28

      x = 28 - 16

x = 12

Answer:

12

Step-by-step explanation:

Answer:

its 1/8.

Step-by-step explanation:

i think its that

Answer:

x=-2 willl be your answer

Answer:

X=-2

please mark brainliest if satisfied

Step-by-step explanation:

Subtract 5x from both sid

Answer:

Angle of Elevation = 38°

Step-by-step explanation:

Angle of Elevation formula is given as

tan x = Opposite /Adjacent

Where

x = Angle of Elevation

Opposite = Height of the tower = 41 meters

Adjacent = Shadow of the vertical tower = 52.5 meters

Hence:

tan x = 41 m/52.5m

x = arc tan (41 m/52.5m)

x = 37.988141726°

Approximately to the nearest degree x = 38°

Answer:

a= -18

Step-by-step explanation:

-18/-3 = 6

6-1=5

5>4

I just used guess and check to find -18 :)

Answer:

8 grams

Step-by-step explanation:

The balance is in equilibrium, so the weights of the two sides are equal.

Let the weight of a square be s.

Left side: 2s + 4

Right side: s + 3(4) = s + 12

The weights are equal, so we set the two expressions equal.

2s + 4 = s + 12

s = 8

Answer: The weight of a square is 8 grams.

Question 2: The first step was the combine the like terms; in this example he is subtracting the 3x on both sides of the =.

Answer: x=14

only #2

Step-by-step explanation:

Step 1: Subtract 3x from both sides.

2x+6−3x=3x−8−3x

−x+6=−8

Step 2: Subtract 6 from both sides.

−x+6−6=−8−6

−x=−14

Step 3: Divide both sides by -1.

-x/-1=-14/-1

Answer:

(x,y)=(-28/11,16/11)

Step-by-step explanation:

hope this helps!

Answer:

x=0, y=2. (0, 2).

Step-by-step explanation:

y=12x+2

2y=x+4

------------

2(12x+2)=x+4

24x+4=x+4

24x-x=4-4

23x=0

x=0/23

x=0

y=12(0)+2

y=0+2

y=2