All categories

2 years ago

Explain the steps when solving for the variable y 12x+2y=18

Mathematics

2 answers:

Harrizon [31]2 years ago

8 0

Answer:

Step-by-step explanation:

First, you need to subtract both sides by 12x

12x+ 2y=18

-12x -12x

That will give you: 2y= 18-12x

Next, you need to deviede both sides by 2

2y/2= 18-12x/2

That gives you the answer:

y= 18-6x

(im not 100% sure but i think this is right, feel free to correct me)

makvit [3.9K]2 years ago

3 0

Answer:

Simplifying

12x + 2y = 18

Solving

12x + 2y = 18

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-2y' to each side of the equation.

12x + 2y + -2y = 18 + -2y

Combine like terms: 2y + -2y = 0

12x + 0 = 18 + -2y

12x = 18 + -2y

Divide each side by '12'.

x = 1.5 + -0.1666666667y

Simplifying

x = 1.5 + -0.1666666667y

You might be interested in

Arithmetic and geometric sequence<br> An=-9.2+(n-1)2.1

bazaltina [42]

Answer:

Your input -2.9,-5.0,-7.1,-9.2,-11.3,-13.4,-15.5,-17.6 appears to be an arithmetic sequence

Step-by-step explanation:

3 0

2 years ago

What is the percent of change from 10 to 5?

NNADVOKAT [17]

Answer:

50% decrease

Step-by-step explanation:

$\dfrac{(V_2-V_1)}{|V_1|} \times 100$

$= \dfrac{(5 - 10)}{|10|} \times 100$

$= \dfrac{-5}{10} \times 100$

$= -0.5 \times 100$

$= -50\% \; \text{change}$

$= 50\% \; \text{decrease}$

8 0

2 years ago

Read 2 more answers

a spherical balloon is deflated at a rate of 256pi/3 cm^3/sec. at what rate is the radius of the balloon changing when the radiu

Hunter-Best [27]

What you need to look for is $\frac { dr }{ dt }$ when r=8.

Now:

$Volume\quad of\quad a\quad sphere:\\ \\ V=\frac { 4 }{ 3 } \pi { r }^{ 3 }$

$\therefore \quad \frac { dV }{ dr } =\frac { 4 }{ 3 } \pi \cdot 3{ r }^{ 2 }=4\pi { r }^{ 2 }\\ \\ \therefore \quad \frac { dr }{ dV } =\frac { 1 }{ \frac { dV }{ dr } } =\frac { 1 }{ 4\pi { r }^{ 2 } }$

$And:\\ \\ \frac { dV }{ dt } =-\frac { 256\pi }{ 3 } \\ \\ Therefore:\\ \\ \frac { dr }{ dt } =\frac { dr }{ dV } \cdot \frac { dV }{ dt }$

$\\ \\ =\frac { 1 }{ 4\pi { r }^{ 2 } } \cdot -\frac { 256\pi }{ 3 } \\ \\ =-\frac { 256 }{ 12 } \cdot \frac { \pi }{ \pi } \cdot \frac { 1 }{ { r }^{ 2 } }$

$\\ \\ =-\frac { 64 }{ 3{ r }^{ 2 } } \\ \\ When\quad r=8,\\ \\ \frac { dr }{ dt } =-\frac { 64 }{ 3\cdot { 8 }^{ 2 } } =-\frac { 1 }{ 3 } \\ \\ Answer:\quad -\frac { 1 }{ 3 } \quad cm/sec$

3 0

3 years ago

Public relations is part of business and administrative support true or false

kogti [31]

Answer: true :))

Step-by-step explanation:

4 0

2 years ago

If Chloe is 22 her sister Bethany is 23 but there mum is 21 how are they her children

gayaneshka [121]

Answer:

Step-by-step explanation:

I think it three sometimes it's a trick question

so its not number one or 2 because how are they her children so the answer is 3

3 0

1 year ago