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2 years ago

X/3=-7 find the variable

Mathematics

2 answers:

rjkz [21]2 years ago

6 0

Answer:

x=−21

Step-by-step explanation:

yulyashka [42]2 years ago

6 0

Answer: x=-21

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

1 /3 x =−7

Step 2: Multiply both sides by 3.

3*( 1/3 x)=(3)*(−7)

x=−21

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Is my answer correct??

Gwar [14]

No it isn’t correct, it’s the second one! Good luck!

3 0

3 years ago

Sam wants to write an equation to represent a proportional relationship with a constant of proportionality of 6 he write y = 6 +

Olin [163]

Answer:

y = 6x

Step-by-step explanation:

The equation representing a proportional relationship is

y = kx ← k is the constant pf proportionality

Here k = 6 , then

y = 6x ← equation of proportion

7 0

3 years ago

Please help me<br> Show your work

GrogVix [38]

<u>ANSWER TO PART A</u>

The given triangle has vertices $J(-4,1), K(-4,-2),L(-3,-1)$

The mapping for rotation through $90\degree$ counterclockwise has the mapping

$(x,y)\rightarrow (-y,x)$

Therefore

$J(-4,1)\rightarrow J'(-1,-4)$

$K(-4,-2)\rightarrow K'(2,-4)$

$L(-3,-1)\rightarrow L'(1,-3)$

We plot all this point and connect them with straight lines.

ANSWER TO PART B

For a reflection across the y-axis we negate the x coordinates.

The mapping is

$(x,y)\rightarrow (-x,y)$

Therefore

$J(-4,1)\rightarrow J''(4,1)$

$K(-4,-2)\rightarrow K''(4,-2)$

$L(-3,-1)\rightarrow L''(3,-1)$

We plot all this point and connect them with straight lines.

See graph in attachment

7 0

3 years ago

What is the slope of the line that passes through (-2, 5) and (3, 9)?

Naya [18.7K]

Answer: 4/5

Step-by-step explanation:

1. you need to know the formula which is m = y2-y1/x2-x1

2. you plug in the numbers which would be 9-5/3-(-2)

3. you get your answer as 4/5

4. the answer is 4/5

3 0

3 years ago

Read 2 more answers

a football is fired upward with an initial speed of 800 feet per second. It is given that h=-12t^2+360t (h is the height of the

tangare [24]

Answer:

30 s

Step-by-step explanation:

When the ball hits the ground h=0. To find the time t when this happens we must solve the equation h=0.

●h= 0

● -12t^2+360t =0

● t(-12t +360) = 0

● t = 0 or -12t +360 =0

● t=0 or -12t = -360

● t=0 or 12t =360

● t=0 or t=360/12

● t=0 or t= 30

The equation has two solutions.

The ball was fired with an initial speed of 800 feet per second so it cannot hit the ground at t=0.

So the ball hits the ground after 30 s.

6 0

3 years ago