y = 5х – 7
—3х – 2 y = -12

Answers

Answer 1

[tex]-3x-2(5x-7)=-12\\-3x-10x+14=-12\\-13x=-26\\x=2\\\\y=5(2)-7\\y=10-7\\y=3[/tex]

Answer 2

Answer:

[tex](x, y) = (-\frac{29}{2}, -12)[/tex]

Step-by-step explanation:

[tex]-12 = 5 x ( -\frac{29}{2} ) - 7 - 3 x ( -\frac{29}{2} ) - 2 x (-12) = -12[/tex]


Related Questions

-4<3x-1<14 solve the compound inequality

Answers

Answer:

Move all terms not containing the variable from the center section of the inequality.

−1<x<5

ANSWER THIS PLEASE :)

Answers

Answer: it’s hamburger

Step-by-step explanation:

Just kidding it’s c

Okay I don't know this one either so uh help please

Answers

9514 1404 393

Answer:

  (a)  A'(-2, 1), B'(-4, -3), C'(-7, 0)

Step-by-step explanation:

If X is the center of rotation, the coordinates of point P are transformed like this:

  P' = -(P -X) +X

  P' = 2X -P

  (x, y) ⇒ (2(-5) -x, 2(3) -y)

  (x, y) ⇒ (-10-x, 6-y)

__

Your points are transformed to ...

  A(-8, 5) ⇒ (-10-(-8), 6-5) = A'(-2, 1)

  B(-6, 9) ⇒ (-10-(-6), 6-9) = B'(-4, -3)

  C(-3, 6) ⇒ (-10-(-3), 6-6) = C'(-7, 0)

These coordinates match the first choice.

You deposit $750 in a bank
account that will earn a simple
interest of 3.5% per year.
How much will your investment
be worth after 12 years?

Answers

Answer:

$1,065

Step-by-step explanation:

Simple interest equation: A=P(1+rt)

P (principal amount) = 750, r (rate) = 3.5%, t (time) = 12 years

A=750(1+(3.5)(12))

A=1065

The amount of an investment to be worth after 12 years should be considered as the $1,065

Calculation of an investment:

Since

The deposited amount is $750

The rate of interest is 3.5% per year.

And, the time period is 12

So,

A=750(1+(3.5)(12))

A=1065

Hence, The amount of an investment to be worth after 12 years should be considered as the $1,065

Learn more about rate here: https://brainly.com/question/13455383

giving brainliest help

Answers

Answer:

The first one

Step-by-step explanation:

R(-2,8) S(10,6) midpoint

Answers

Answer:

M = (4,7)

Step-by-step explanation:

If points are (x₁,y₁) and (x₂,y₂), then the midpoints are given by :

[tex]M=(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})[/tex]

We have,

x₁ = -2, y₁ = 8, x₂ = 10 and y₂ = 6

So,

[tex]M=(\dfrac{-2+10}{2},\dfrac{8+6}{2})\\\\=(\dfrac{8}{2},\dfrac{14}{2})\\\\=(4,7)[/tex]

So, the midpoints of the given points are (4,7).

The volume of a cube related to the area of a face by the formula V =A^3/2. What is the volume of a cube whose face has an area of 25mm^2.

Answers

Answer:

Volume = 125 mm^3

Step-by-step explanation:

Here, we want to get the volume of the cube

What we have to do here is to substitute the value of the area

We have this as

:

V = 25^(3/2)

V = (√25)^3

V = 5 * 5 * 5 = 125 mm^3

someone please help me I need to know asap​

Answers

Answer: 3

Step-by-step explanation:

f(x)= -x + 4

Therefore f(-1)= -(-1)+4= 1+4= 5

h(x)= (3/2)x - 1

Therefore h(2)= (3/2)(2) -1= 3-1= 2

f(-1) - h(2)= 5 - 2= 3

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Answers

Answer:

You're very kind for that lol. But for math work like "3x-3" or whatever use Cymath.com

Step-by-step explanation:

Which of the following is the solution to
the equation below?
X – 1.4 = 0.6
A 0.8
C 1.2
B 1.0
D 2.0

Answers

Answer: D

Step-by-step explanation:

Step by step:

1) we want to get the numbers to one side and the letters to one side

In order to get -1.4 to the right side, we cancel it from the left and take it to the right. In order to cancel -1.4 we had +1.4 to both ends which leaves us with 0 on the left and 2.0 to the right (1.4+0.6)

Therefore:
X=2.0

Can Anybody Solve this and send the pic of the ans! ​

Answers

Answer:

solve it yourself

Step-by-step explanation:

length of ist part= 30 cm

breadth of ist part = 21 cm

area of ist part = 630 cm

diameter of 2nd part= 21 cm

area of 2nd part = ¼dπ

π= 22/7

= ¼× 21 ×22/7

=3×10.5

= 31.5cm²

total area = ist part +2nd part + 3rd part

=

If ben completes 1/4 of his book report in 5/6 of an hour how much of the book report does ben complete per hour?

Answers

Answer: Ben completes 3/10 of his book report  per hour

Step-by-step explanation:

Ben completes 1/4 of his book report in 5/6 of an hour

5/6 of an hour =  5/ 6 x 60 = 50 minutes

Therefore in 1 hour, which is = 60 minutes  he  completes

(1/4 x 60 minutes)/ 50 minutes

= 15/ 50

= 3/10 of his book report.

7. Maria quiere agrandar la foto de su
graduación de manera proporcional de
tal manera que su área sea 16 veces la
de la original. Si la que se muestra a
continuación tiene las medidas de la
foto original, ¿cuál será el perimetro de
la nueva foto?
6
24
960
450
240
76​

Answers

Answer:

the perimeter is 960

Step-by-step explanation:

The computation of the perimeter is shown below;

If we assume

= (24 × 2) + (6 × 2)

= 48 + 12

= 60

And, the area is 16 times to that of original So

= 60 × 16

Hence, the perimeter is 960

h(x) = x²- 5x + 7
a). h(2)
b).h(-5)
c). h(-8)

Answers

C is the answer for the question

WHAT WOULD THIS BEEE ANYONEEE!!!

Answers

Answer:

The answer would be 3

3x3x3 equals 27 you times it three times because its cube root of 27

Answer:

125

Step-by-step explanation:

cubed root of 27

"The cubed root of a number is the number that, when multiplied by itself three times (number x number x number), gives the original number. For example, the cubed root of 27 is 3, as 3 x 3 x 3 = 27. The cubed root of 125 is 5, as 5 x 5 x 5 = 125"

Choose from among the following sequence of numbers the one that is arithmetic with a common difference of +3

Answers

Answer:

3, 6, 9, 12, 15

Step-by-step explanation:

just took quiz

You have $3.10 in dimes and quarters.You have 3 more dimes than quarters. write an equation that relates the number of coins and have any equation for the value of the coins.how many of each kind of coin do you have?

Answers

Answer:

y=Q+3D

Step-by-step explanation:

the total amount is y=, than A would be quarters. and you add 3 because there's always 3 more dimes than quarters than add D for dimes.

The system of equations is 0.10x + 0.25y = 3.10 and x = y + 3. The number of dimes and quarters will be 11 and 8, respectively.

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

You have $3.10 in dimes and quarters. You have 3 more dimes than quarters.

Let 'x' be the number of dimes and 'y' be the number of quarters. Then the equation is given as,

0.10x + 0.25y = 3.10      ...1

x = y + 3                        ...2

From equations 1 and 2, then we have

0.10(y + 3) + 0.25y = 3.10

0.10y + 0.30 + 0.25y = 3.10

0.35y = 2.8

y = 8

Then the value of 'x' is given as,

x = 8 + 3

x = 11

The system of equations is 0.10x + 0.25y = 3.10 and x = y + 3. The number of dimes and quarters will be 11 and 8, respectively.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ5

Which of the following is a geometric sequence?

A:0, 2, 6, 12, 72, . . .

B:1/2,2/3,3/4,4/5,5/6

C:4, 9, 14, 19, 24, . . .

D:1, 3, 9, 27, 81, . . .

Answers

Answer:

D

Step-by-step explanation:

to find the next term multiply by 3

Ms. Vega read 20% of the Star Wars book. She read 8 pages of the book.

8. Enter the number of pages in the Star Wars book.

Answers

Answer: 40 pages in total

Step-by-step explanation:

Ms. Vega has read 20% of the book and this translates to 8 pages of the book.

20% = 8 pages

Assume the total number of pages is x:

20% * x = 8

0.2x = 8

x = 8 / 0.2

x = 40 pages in total

Answer:

40 pages in book

Step-by-step explanation:

8 pages read

8/40 = .20

HELPPPP HURRYYYYY I DONT KNOW WHEN THIS IS DUE

Answers

Answer is 2nd answer

If cos(t) =

1
2
and tan(t) < 0, find sin(t) and cos(-t)

Answers

Answer:

cos theta=-1/2

theta=cos-¹(-1/2)=120

tan theta=tan 120=-√3

sin theta=sin120=√3/2

cos(- theta)=cos theta=cos 120=-1/2

A scale drawing of a room is shown below. In the drawing, the room is 73 inches long and
5 inches wide. What is the actual area of the room?

Answers

Answer:

The answer is 365

Step-by-step explanation:

just do 73 times 5 and you get your answer

A computer program used one-third of the computers total memory. The computer had a memory of 58 gigabytes. Write an algebraic equation to represent this scenario.

Answers

58 - (58/3) = x




Hhhhhhhhhhhhhhhhhh

29.
After 5 years, the sum of the ages of Reema and Neha will be 30. If Reema is 4 years
younger than Neha today, then find the sum of the present ages of Reema and Neha.
years

Answers

Answer:

Sum of their present ages  = 20 years

Step-by-step explanation:

Present age :

   Neha's age = x years

Reemas' age = x - 4

After 5 years:

       Neha's age = (x +5) years

       Reemas' age = (x - 4 + 5 ) = x + 1

Sum of the ages of Reema and Neha will be 30

Therefore,    

x + 5  + x + 1 = 30

x + x + 5 + 1 = 30

   2x +  6    = 30

            2x = 30 - 6

           2x = 24

             x = 24/2

            x = 12

Neha's age = 12 years

Reema's age = 12 - 4 = 8 years

Sum of their present ages = 12 + 8 = 20 years

Carlos was accepted to a university that has a tuition cost of $33,000 per year. He took out a loan from the bank for the entire $33,000 and made loan payments of $415 per month for 8 years. After the 8-year period, how much more than the tuition cost did Carlos pay? F. $6,840 G. $4,980 H. $4,860 J. $3,320 K. $3.120

Answers

Answer:

F. $6,840

Step-by-step explanation:

8x12=96

415x96=39,840

39,840-33,000 = $6,840

Does anyone know how to solve this

Answers

Hey I think the answer is letter b if not
I am sorry

[tex]\rm\red{\overbrace{\underbrace{\tt\color{orange}{\:\:\:\:\:\:\:\:Answer:\:\:\:\:\:\:\:\:\:}}}}[/tex]

B. 100°

[tex]\rm\red{\overbrace{\underbrace{\tt\color{orange}{\:\:\:\:\:\:\:\:ChaEunWoo2009\:\:\:\:\:\:\:\:}}}}[/tex]

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A pack of Skittles 30% are red , 20% are orange, 25% are yellow, 15% are green, and 10%are purple. Find the number of Skittles of each color that are in the bag.

Answers

Does it say the total number of skittles in the pack? That’s needed to answer the question.

Agree or Disagree

Rotating a regular decagon by 75° carries the decagon onto itself. ​

Answers

Answer: False
Reasoning: needs to be a multiple of 36°

GENIUS OR ANYONE PLZ PLZ PLZ ANSWER THIS QUESTION

Answers

Answer:

A

Step-by-step explanation:

Answer:

The answer is lovely c

What is 1 12/20 as a percentage

Answers

Step-by-step explanation:

step 1. 1-12/20 = 1.6

step 2. 1.6 = 160%.

Its 160 okk like u use photomath
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