39= 3m - 12 I'd really appreciate it if you showed your work.

QUESTION POSTED AT 14/12/2019 - 05:05 PM

Answered by admin AT 14/12/2019 - 05:05 PM

Flip the equation.
3m-12=39
and add 12 to both sides.
3m-12+12=39+12
3m=51
Now divide both sides by 3.
 \frac{3m}{3} = \frac{51}{3}


Final answer: m=17

Post your answer

Related questions

If quadrilateral A B C D rotates 90° counterclockwise about the origin, what are the coordinates of A′ in quadrilateral A′B′C′D′ ?

If this is all the information you have I can explain it like this.

Your original coordinates are written in the form (x,y).
If you rotate the quadrilateral about the origin 90 degrees, it will be (-y,x).

For example, if the original coordinates for A is (4,6), then A'  is (-6,4).

ANSWERED AT 22/01/2020 - 02:23 AM


QUESTION POSTED AT 22/01/2020 - 02:23 AM

To find the percent of a discount, ______________. A. find the percent of decrease from the original price to the new price. B. find the percent of increase from the new price to the original price. C. multiply the original price by the new price. D. divide the new price by the original price.

The correct and best answer would be letter B. To find the percent of a discount, you have to find or solve for the percent of increase from the new price to the original price. This is because you usually have the new price being given to you so you compare it with the old price to know the percent discount.

ANSWERED AT 22/01/2020 - 02:23 AM


QUESTION POSTED AT 22/01/2020 - 02:23 AM

How many solutions exist for the given equation? 1/2(x + 12) = 4x – 1

X + 12 = 8x - 2
7x = 14
x = 2.
that is the solution.

ANSWERED AT 22/01/2020 - 02:19 AM


QUESTION POSTED AT 22/01/2020 - 02:19 AM

Find the perimeter of rectangle PQRS with vertices P(0,0), Q(0,7), R(12,7) & S (12,0)

P=7+7+12+12P=14+24P=38

See the attachment for diagram

ANSWERED AT 22/01/2020 - 02:17 AM


QUESTION POSTED AT 22/01/2020 - 02:17 AM

A sequence is defined recursively using the formula f(n + 1) = f(n) – 5 . Which sequence could be generated using this formula? *1, –5, 25, –125, ... *2, 10, 50, 250, ... *3, –2, –7, –12, ... *4, 9, 14, 19, ...

Answer:

Option C. 3, -2, -7, -12....

Step-by-step explanation:

The sequence is defined recursively using the formula f(n+1) = f(n) - 5

We have to identify the sequence generated by this formula.

B). 1, -5, 25, -125.....

f(n+1) = -5 and f(n) = 1

Therefore - 5 = 1 - 5

⇒ -5 ≠ -4

This sequence is not following the formula.

B). 2, 10, 50, 250.........

f(n+1) = 10 and f(n) = 2

Now we use the formula

10 = 2 - 5

10 ≠ -3

This sequence is not following the formula.

C). 3, -2, -7, -12

f(n+1) = -2 and f(n) = 3

We put this value in the formula

-2 = 3 - 5

-2 = -2

Therefore , the sequence is following the formula.

D). 4, 9, 14, 19........

f(n+1) = 9 and f(n) = 4

9 = 4 - 5

9 ≠ -1

Therefore the formula is not applicable to form this sequence.

Option C. is the answer.

ANSWERED AT 22/01/2020 - 02:16 AM


QUESTION POSTED AT 22/01/2020 - 02:16 AM

The function T(n) is defined below. Which of the following are equal to T(8)? Check all that apply. T(n) = 4n - 5 A. 27 B. 37 C. T(5) + T(3) D. T(7) + 4

B is the answer the rest doesn't make since to me

ANSWERED AT 22/01/2020 - 02:14 AM


QUESTION POSTED AT 22/01/2020 - 02:14 AM

R varies directly as s. find r when s=12 and k=2

r varies directly as s,

r=ks

r=(2)(12)
r=24

ANSWERED AT 22/01/2020 - 02:13 AM


QUESTION POSTED AT 22/01/2020 - 02:13 AM

What is the x-intercept of the line containing the points (-6,10) and (12,2)

First, find the slope,
m= \frac{y-y_1}{x-x_1}
m= \frac{10-2}{-6-12}
m= -\frac{4}{9}
Now using point slope form, pick a coordinate, I'll pick (12,2)
y-y_1=m(x-x_1)
y-2=- \frac{4}{9} (x-12)
y=-\frac{4 x}{9}+\frac{22}{3}
Now, when x-intercept, 'y' will be 0,
0=-\frac{4 x}{9}+\frac{22}{3}
x= \frac{33}{2}

ANSWERED AT 22/01/2020 - 02:09 AM


QUESTION POSTED AT 22/01/2020 - 02:09 AM

What is the value of x in the equation (x + 12) = (x + 14) – 3?

 These points, x = –2/3 and x = 3

ANSWERED AT 22/01/2020 - 02:08 AM


QUESTION POSTED AT 22/01/2020 - 02:08 AM

Polygon ABCD is translated to create polygon A'B'C'D. Point A is located at (1,5) and point A' is located (-2,1). What is the distance from B to B'

Your answer would be 5 if that's a choice.

ANSWERED AT 22/01/2020 - 02:03 AM


QUESTION POSTED AT 22/01/2020 - 02:03 AM

Which statement is true? A. 1.2<-6.9 B. 6.9<1.2 C. -6.9<-1.2 D. -1.2>6.9

C because if you look at it on a number line -2.9 is greater than -6.9.

ANSWERED AT 22/01/2020 - 02:03 AM


QUESTION POSTED AT 22/01/2020 - 02:03 AM

$30:$6 Simplify the ratio. A. 1:5 B. 3:15 C. 5:1 D. 15:3

The answer is C because 6 goes into 6 one time, and 30 five times, giving you 5:1.

ANSWERED AT 22/01/2020 - 02:01 AM


QUESTION POSTED AT 22/01/2020 - 02:01 AM

Which transformation is not a rigid transformation? A. dilation B. reflection C. rotation D. translation

The correct answer is dilation

ANSWERED AT 22/01/2020 - 01:58 AM


QUESTION POSTED AT 22/01/2020 - 01:58 AM

(2.03) The table shows the solution to the equation |2x − 3| − 1 = 2: Step 1 |2x − 3| = 2 + 1 Step 2 |2x − 3| = 3 Step 3 2x − 3 = 3 or 2x + 3 = 3 Step 4 2x = 6 or 2x = 0 Step 5 x = 3 or x = 0 Which is the first incorrect step? (1 point)

The first incorrect step would be step number three since when solving Absolute-Value Equations, when you isolate the Absolute-Value bars and the terms inside of it, the next step should be to make two equations: one that equals the original number given on the right side of the equal sign and one that is the opposite of the number on the equal sign. For example, in this case, Step three should have turned out more like this:

|2x - 3| = 3

2x - 3 = 3 AND  2x - 3 = -3

ANSWERED AT 22/01/2020 - 01:55 AM


QUESTION POSTED AT 22/01/2020 - 01:55 AM

Work out 5/6 -3/8 give your answer as a fraction in its lowest terms. you must show your working.

5/6 -3/8 = (4*5 -3*3)/24 = (20 -9)/24 = 11/24

ANSWERED AT 22/01/2020 - 01:53 AM


QUESTION POSTED AT 22/01/2020 - 01:53 AM

Whats the similarity between 85,19,17,12 and 1

They are all less than 86
They are all positive integers
They are all real numbers
They are all natural numbers
They are all whole numbers

ANSWERED AT 22/01/2020 - 01:52 AM


QUESTION POSTED AT 22/01/2020 - 01:52 AM

Simplify the expression. (–2 – c)(–1) A. –2 – c B. –2 + c C. 2 + c D. 2 – c

Answer:

C ) 2 + c .

Step-by-step explanation:

Given  :  (–2 – c)(–1).

To find : Simplify the expression.

Solution :  We have given

(–2 – c)(–1).

Distributes -1 over  –2 – c.

-2 ( -1)  - c ( -1) .

We know in multiplication two negative sign become positive .

2 + c .

Therefore, C ) 2 + c .

ANSWERED AT 22/01/2020 - 01:51 AM


QUESTION POSTED AT 22/01/2020 - 01:51 AM

Use the Distributive Property to find the price of 9 CDs that cost $13.99 each. A. $125.91 B. $126.00 C. $126.90 D. $117.00

Answer:

Correct option is:

A. $125.91

Step-by-step explanation:

Cost of each CD= $13.99

Cost of 9 CDs= $13.99×9

                      = $ 13.99(10-1)

                      = $ (13.99×10-13.99×1)   (using distributive property)

                       = $ (139.9-13.99)

                       = $125.91

Hence, Correct option is:

A. $125.91

ANSWERED AT 22/01/2020 - 01:51 AM


QUESTION POSTED AT 22/01/2020 - 01:51 AM

Simplify the expression. –8z – 14z A. –22z B. 6 C. 6z D. 22z

Answer:  The correct option is

(A) -22z.

Step-by-step explanation:  We are given to simplify the following expression :

E=-8z-14z~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To simplify the given expression, we should combine the coefficients of z.

The simplification of expression (i) is as follows :

E\\\\=-8z-14z\\\\=(-8-14)z\\\\=(-22)z\\\\=-22z.

Thus, the required simplified form is -22z.

Option (A) is CORRECT.

ANSWERED AT 22/01/2020 - 01:50 AM


QUESTION POSTED AT 22/01/2020 - 01:50 AM

Two beauticians, Lydia and Jackie, are working on your hair. Lydia can complete the work in 2 hours, while Jackie can complete the work in 1 hour. How many hours do the beauticians take if they work together? A. one half B.three halvess C.two thirds D.four thirds

Answer:

Option C.

Step-by-step explanation:

Two beauticians Lydia and Jackie are working on your hair.

Lydia takes the time to complete the work = 2 hours

Per hour work done by Lydia = 1/2

Jackie complete the  work = 1 hour

In one hour total work done by both Jackie and Lydia together = 1+\frac{1}{2}=1\frac{1}{2}or \frac{3}{2}

therefore, time taken by both to complete the work will be = \frac{1}{\frac{3}{2} } = \frac{2}{3}

Option C. two thirds is the correct option.

ANSWERED AT 22/01/2020 - 01:47 AM


QUESTION POSTED AT 22/01/2020 - 01:47 AM

What are the discontinuities of the function f(x) = the quantity of x squared plus 6 x plus 9, all over 3 x plus 15.? A. x ≠ −3 B.x ≠ −2 C. x ≠ −8 D. x ≠ −5

Answer:

The correct option is D.

Step-by-step explanation:

The given function is

f(x)=\frac{x^2+6x+9}{3x+15}

f(x)=\frac{x^2+2(x)(3)+3^2}{3(x+5)}

Using algebraic property:

(a+b)^2=a^2+2ab+b^2

f(x)=\frac{(x+3)^2}{3(x+5)}

f(x)=\frac{(x+3)(x+3)}{3(x+5)}

A rational function is discontinuous at that point where the value of denominator equal to 0.

Equate denominator equal to 0.

3(x+5)=0

x+5=0

x=-5

Therefore function is discontinuous at x=-5.

The discontinuity of the function is

x\neq -5

The function f(x) is not defined at x=-5.Therefore option D is correct.

ANSWERED AT 22/01/2020 - 01:45 AM


QUESTION POSTED AT 22/01/2020 - 01:45 AM