12x + 3y = 15
Solve &Justification

Answers

Answer 1

Answer:

Step-by-step explanation:

12x+3y= 15

12x= -3y+15

divide both sides by 12 and you get

x= -3/12y+15/12

simplifying:

x=-1/4+5/4


Related Questions

A=25m2, b= _, h= 5/6m

Answers

Area of a triangle = 1/2 x b x h

25 = 1/2 x b x 5/6

Divide both sides by1/2

50 = b x 5/6

Divide both sides by 5/6

b = 60m

3 squares and 4 circles.
The ratio is 3:4. What are the next 2 equivalent ratios for this problem?

Answers

Answer:

6:8 and 9:12

Step-by-step explanation:

Just multiply a number to both of the numbers in the ratio to get an equivalent ratio

3:4

3 x 2 = 6       4 x 2 = 8      3 x 3 = 9        4 x 3 = 12

9:12

6:8

Look at the screenshot

Answers

Here the answer which is 36.

Answer:

37.5 is the answer to the problem

How do I to simplify a fraction?

Answers

Answer:

Most math teachers would very much be happy to have the most version of the answer. For example:

[tex]\frac{4}{8} = \frac{1}{2}[/tex]

You do not really have to simplify a fraction

Answer:

Check if the denominator has any radicals. If so, multiply both numerator and denominator with the radical to remove it.Check if the numerator and denominator have any common factors. If so, factor them out and remove them.Check if the numerator is greater than the denominator. If so, change fraction into a mixed number.

Step-by-step explanation:

Examples for each step:

[tex]\frac{2}{\sqrt{3} } = \frac{2}{\sqrt{3} } * \frac{\sqrt{3} }{\sqrt{3} } = \frac{2\sqrt{3} }{3}[/tex][tex]\frac{10}{15} = \frac{5(2)}{5(3)} = \frac{2}{3}[/tex][tex]\frac{6}{5} = 1\frac{1}{5}[/tex]

plss help me with my questions plsss
plss help me plsss​

Answers

Answer:

11. 3.8 12. .009 13. 5.1 14. .678 15. 37.0800

Step-by-step explanation:

hey

how are you cutie girl

you're from which country

help pleasw!!!!!!!
[tex]17x - 18 = 2(7x)[/tex]

Answers

Answer:

x = 6

Explanation:

17x − 18 = 2(7x)

Simplify both sides of the equation

17x − 18 = 2(7x)

17x + −18 = 14x

17x − 18 = 14x

Subtract 14x from both sides

17x − 18 − 14x = 14x − 14x

3x − 18 = 0

Add 18 to both sides

3x − 18 + 18 = 0 + 18

3x = 18

Divide both sides by 3

3x / 3 = 18 / 3

x = 6

- PNW

17x - 18 = 2(7x)
17x - 18 = 14x
subtract 17x from both sides of the equation
-18 = -3x
divide -3 from both sides of the equation to get the x alone
6 = x

Whoever answers correctly gets brainlist!

Answers

Answer:

k= 2.5

Step-by-step explanation:

solve for k by simplifying both sides of the equation the isolatating the variable. hope this helps have a good night/day :) ❤



8(x + 30) + 5
A
x + 35
B
8x + 35
C
8x + 240
D
8x + 245

Answers

Answer:

D

Step-by-step explanation:

First, remove parenthesis:

8(x + 30) = 8*x + 8*30 = 8x + 240

Then, add the 5 at the end:

8x + 240 + 5 = 8x + 245

D. 8x + 245

8x +240+5

WHAT IS THE EQUATION OF THE LINES IN SLOPE -INTERCEPT FORM ?

Answers

Answer:

y=x-5

Step-by-step explanation:

the y intercept is -5 and slope is 1

y=1x+-5 is what. i think


3x+6y = 27
x + 2y = 11
Solve by elimination

Answers

Answer:go0gle

gle come in clutch

Step-by-step explanation:

Next, let's solve 3x+2y = 10 for the variable y. Move the 3x to the right hand side by subtracting 3x from both sides, like this: 3x - 3x = 0. The answer is 2y. The answer is 10-3x.

what is equivalent to 1/8

Answers

Answer:

2/16 and 8/64 is equivalent to 1/8

Answer:

0.125

Step-by-step explanation:

Analyze the diagram below and complete the instructions that follow.
1117
X
x + 3
Find the value of x.

Answers

Answer:

x = 6

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right  

Equality Properties

Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtract Property of Equality

Algebra I

Terms/Coefficients/DegreesExpand by FOIL (First Outside Inside Last)FactoringMultiple Roots

Trigonometry

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

a is a legb is another legc is the hypotenuse

Step-by-step explanation:

Step 1: Identify

a = x + 3

b = x

c = √117

Step 2: Solve for x

Substitute [PT]:                                                                                                (x + 3)² + x² = (√117)²Expand [FOIL]:                                                                                                 x² + 6x + 9 + x² = (√117)²Combine like terms:                                                                                       2x² + 6x + 9 = (√117)²Exponents:                                                                                                      2x² + 6x + 9 = 117[SPE] Subtract 117 on both sides:                                                                    2x² + 6x - 108 = 0Factor out GCF:                                                                                               2(x² + 3x - 54) = 0[DPE] Divide 2 on both sides:                                                                         x² + 3x - 54 = 0Factor Quadratic:                                                                                            (x - 6)(x + 9) = 0Solve roots/solve x:                                                                                         x = -9, 6

Since we are dealing with positive values, we can disregard the negative root.

∴ x = 6

Janet and Kyle each purchase Blu Ray discs and Cd's from Amazon. Janet buys 3 Blu ray and 2 Cd's for $58. Kyle buys 1 Blu Ray and 4 Cd's for $46. How much does each Blu Ray and CD cost?

Answers

Answer:

y = 20   x = 6

Step-by-step explanation:

1 (3x+ 2y = 58 ------------>  -3x + -2y = -58

1x + 2y = 46 -------------->    1x + 2y = 46  

                                              ____________

                                                -2x  =  -12

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

                                                -2x       -2x

                                                 x = 6

3(6) + 2y = 58

18 + 2y = 58

-18          -18                                    

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

       2y = 40

      -----  -----

       2y     2y

y = 20

                                               

                                           

Evaluate 12P3 answer

Answers

Aortic snrfbeifi answer is 2353

Following are the calculation to the given expression:

Given:

[tex]\to ^{12}{P_3}[/tex]

To find:

value=?

Solution:

Using formula:

[tex]\to \bold{^nP_r= \frac{n!}{(n-r)!}}[/tex]

[tex]\to \ {^{12}P_3= \frac{12!}{(12-3)!}}\\[/tex]

            [tex]= \frac{12!}{9!}}\\\\= \frac{12 \times 11 \times 10 \times 9! }{9!}}\\\\= 12 \times 11 \times 10 \\\\=1320[/tex]

Therefore, the final answer is "1320".

Learn more about the permutation:

brainly.com/question/1216161

Martin is two years younger than three times his daughter Ada’s age. The sum of their ages is 54. If Ada’s age is given by a, then which equation below fully models in the information given in this problem?

Answers

Answer:

Martin is 40 and Ada is 14

Step-by-step explanation:

Martin's age = mAda's age = a

Martin is two years younger than three times his daughter Ada’s age:

m = 3a - 2

The sum of their ages is 54:

m + a = 54

Solving this equation for m:

m = 54 - a

Eliminate m:

3a - 2 = 54 - a

Solve for a:

3a + a = 54 + 24a = 56a = 56/4a = 14

Find m:

m = 54 - 14 = 40

Martin is 40 and Ada is 14

If n (A-B) =18, A (AUB)=70
I and n(AnB)=25, then find
n (B)

Answers

Answer:

hope it will help yu a lot

I will mark you brainalist

Answers

Answer:

thn=ank you

Step-by-step explanation:

its 3, C

Which binomial is a factor of x^3 -6x^2 +3x+10?
A: x+1
B: x+2
C: x+5
D: x+10

Answers

It’s a or c it’s probably c

i’ll give brainliest!!! i just need the coordinates of T

Answers

Answer:

(-4, 5)

Step-by-step explanation:

[tex]\sqrt100j^9r^6[/tex]

Answers

Answer:

ttbh

Step-by-step explanation:

A line passing through the points (-3,1) and (-2,t) has a slope equal to 2. Find the value of t.

Answers

Step-by-step explanation:

BRAINLY FREE POINTS JSJJSJJ

T=3
(1-t)/(-3- -2)
1-t=-2

A stained glass window in city hall measures 36 inches tall. Kristen drew the window at the scale below.

1 inch : 9 inches

How tall was Kristen's drawing?

Answers

Answer:

4 inches

Step-by-step explanation:

Just have to make it into the simplest form.

a)
Start at -3 and add 10

Answers

Answer:

Step-by-step explanation:7

-3+10= 7 because you count up from -3



-2,-1,0,1,2,3,4,5,6,7

What shape is this cross-section?

Answers

Answer:

Circle

Step-by-step explanation:

Answer:

It is a circle

Step-by-step explanation:

I am really sorry if I am being rude but I have to ask. It's says that you are in collage, so how can you not know something as simple as this?

If 5x+20=y,what is the value of x+4?

Answers

Answer:

5x=y-20

X=(y-20)/5

Wich is

x=y/5 +4

Now x+4 =y/5 +4+4

Then x+4= y/5 +8

Answer:

Step-by-step explanation:

A figure has vertex M(-4, 6). If the center of dilation is the origin, find M' if k = 1/2.

A. M'(-8, 12)
B. M'(-2, 3)
C. M'(-2, -3)
D. M'(2, -3)

Answers

The correct answer is C

Emeka is 10 years 6 months old and his classmate Boyle is 9 years old find the ratio of their age​

Answers

Answer:

Hi...

10+6/12=10.5

So...10.5/9=1.16

The ratio shows how many times one value is contained in another value.

Emeka's age = 10.5 years

Boyle's age = 9 years

The ratio of Emeka's age and Boyle's age is 7/6.

What is a ratio?

The ratio shows how many times one value is contained in another value.

Example:

There are 3 apples and 2 oranges in a basket.

The ratio of apples to oranges is 3:2 or 3/2.

We have,

Emeka:

Age = 10 years and 6 months

We know that,

12 months = 1 year

Divide 6 on both sides.

6 months = 1/6 years

6 months = 0.5 years

So,

10 years and 6 months = 10.5 years.

Emeka age = 10.5 years _____(1)

Boyle:

Age = 9 years _____(2)

The ratio of Emeka's age and Boyle's age.

From (1) and (2) we get,

= Emeka age : Boyle age

= 10.5 : 9

= 105 / 90

= 5 x 21 / 5 x 18

= 21 / 18

= 3 x 7 / 3 x 6

= 7/6

Thus,

The ratio of Emeka's age and Boyle's age is 7/6.

Learn more about ratios here:

https://brainly.com/question/2462048

#SPJ2

Find the 4th term in the sequence with the following definition:
A1= 0
An=2 (an-1 -3)

Answers

Answer:

A2=2(a2-1-3)

A2=2(a1-3)

A2=2(0-3)

A2=-6

A3=2(a2-3)

A3=2(-6-3)

A3=2*-9

A3=-18

A4=2(a3-3)

A4=2(-18-3)

A4=-42

The 4th term in the sequence using the given definition is -42.

for better understanding check the calcualtion below .

Calculation :

we find out the fourth term in the sequence by using the given formula

Given :

[tex]a_1=0\\a_n=2(a_{n-1}-3)[/tex]

first term is given as 0

Lets find out the second term using the given formula

Substitute n =1 to find out second term

[tex]a_n=2(a_{n-1}-3)\\n=2\\ a_2=2(a_{2-1}-3)\\ a_2=2(a_{1}-3)\\a_2=2(0-3)\\a_2=-6[/tex]

so the second term is -6

Find out thrid term by substituting n = 3

[tex]a_3=2(a_2-3)\\a_3=2(-6-3)\\a_3=-18[/tex]

So the third term is -18 . Now find out fourth term by substituting 4 for n

[tex]a_4=2(a_3-3)\\a_4=2(-18-3)\\a_4=-42[/tex]

The 4th term in the sequence using the given definition is -42

Learn more information about 'sequence ' here

brainly.com/question/33617

What is f(3)??????????

Answers

ExplanationMeaning of f(a)

f(a) means the value of f(x) is ... when x = a. That means if we substitute x = 3, we would get f(3).

f(3) also means the value of f(x) is ... when x = 3.

f(x) can also be defined as y // f(x) = y

Find f(3) by graph.

You can find the value of f(x) at specific domain from the graph by looking at x = 3 then look up to where the point or where the graph passes. From the graph, when x = 3 as we look up and the graph passes y-coordinate at 1.

Therefore we can say that when x = 3, y = 1.

Answer

f(3) = 1

Angel and Jayden were at track practice. The track is kilometers around.
Angel ran 1 lap in 2 minutes.
Jayden ran 3 laps in 5 minutes.
Who is running faster?​

Answers

Answer:

Jayden is running faster

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