y = 7x+9
2y+2x=-18

what the slove this system of equations

Answers

Answer 1

Answer:

(x,y) = (0,9)

Step-by-step explanation:


Related Questions

can someone please help me

Answers

Answer:

a. h(t) = 5t + 10

b. 70

c. h(5) = 35 means that in 5 seconds, it will be 35 feet above ground.

Step-by-step explanation:

a. Since the elevator is already 10 feet of the ground, u have to add that in the equation. And since it's 5 feet per second, 5 will be a multiplier so:

h(t) = 5t + 10

b. We have the equation already and in the equation it said that "t" represents the seconds so just replace 1 with 12:

h(12) = 5(12) + 10

h(12) = 60 + 10

h(12) = 70

c. Refer to b that we just did if u will, "t" represents seconds so h(t) becoming h(5) means 5 seconds. So h(5) = 35 means that in 5 seconds, it will be 35 feet above ground.

for a given input value of n, the function h outputs a value of m to satisfy the following equation.

m+1=-2(n+6)

write a formula for h (n) in terms of n

h(n)=

Answers

Answer:

h(n) = - 2n - 13

Step-by-step explanation:

Given

m + 1 = - 2( n + 6) = - 2n - 12 ( subtract 1 from both sides )

m = - 2n - 13, that is

h(n) = - 2n - 13

PLZ PLZ HELP PLZ HELP PLZ HELP

Answers

Answer:

-2 is a negative number

Step-by-step explanation:

when multiplying or diving by a negative, you need to flip the inequality sign

Solve by factoring. Check your answer.
[tex]x^2-4x=0[/tex]

Please show all your work and explain all steps. Thanks :)

Answers

To factor, you split the equation so the factors multiply to get the whole equation.
(x-2)(x+2)

Then, interpret the factors.
The zeros can be found at (2,0) and (-2,0).
x=2, x=-2

Answer:

[tex]x=0,4[/tex]

Step-by-step explanation:

Factor out the common terms from the given terms:

[tex]x^2-4x=0[/tex]

You can factor out x from both:

[tex]x(x-4)=0[/tex]

Rewrite, setting each equal to 0:

[tex](x)(x-4)=0\\\\x=0\\\\x-4=0[/tex]

Simplify the second equation by solving for x:

[tex]x-4=0\\\\x-4+4=0+4\\\\x=4[/tex]

Therefore, x=0 or x=4

:Done

Keenan buys an embroidery machine for $1,400. He uses it to embroider T-shirts. His total profit in dollars from selling the T-shirts is represented with the function f(x) = 12x − 1,400. When the machine breaks, he pays $135 to have it fixed. How does that cost affect a graph of Keenan’s profit function?

Answers

Answer:

the graph shift down 135 units

Step-by-step explanation:

when there is no fixing cost:

f(x)=12x-1400

when there is fixing cost (0ne time): 12x-(1400+135)

the graph shift down 135 units

hope this helps!

Answer This CORRECTLY. I really need help, the question will be placed first, and then the answer choices will be in order from A - D as graphs.

Answers

Answer:

C is the correct one

Step-by-step explanation:

Given

Function

y = -3/2x - 2To find The correct graphSolution

We can see all 3 graphs have y-intercept of -2

Since the slope is negative, it is decreasing function, therefore possible options are A or C

Checking x-intercept and comparing with same of A and C

y = 0-3/2x - 2 = 0-3/2x = 2x = -4/3 = -1.33

As we see it matches Option C, which is the answer

Answer:

4

Step-by-step explanation:

which line slope has 1​

Answers

Answer:

T has a slop of 1

Step-by-step explanation:

hope this helps brainliest pls

Answer:

The black line

Step-by-step explanation:

It goes up a box in one other box (kind of hard to explain)

Plzzzzzz helpppppppppppp

No like for real I don’t understand:(

Answers

Answer: Yes, No

Step-by-step explanation:

Can someone please help ASAP!!

Pleaseee I’ll give brainliest!!!

Answers

Answer:

all real numbers

Step-by-step explanation:

The graphs of positive and negative x^2 parabolas will always have a domain of all real numbers.  Even though you only have a portion of the graph and see a "restriction" on your domain values, it is incorrect to assume that the domain is limited to what you can see.  As the branches of the parabola keep going up and up and up, the values of x keep getting bigger and bigger and bigger.  Again, this is true for all + or - parabolas.      ....... Can consider brainlist*:)

I believe that it is All Real Numbers because it is asking for the domain of function f, which is referring to the x axis only. If you were to graph that as an inequality, you’d come to the conclusion that the line could extend to all possible numbers on the x-axis.

does anyone know how to do this

Answers

is this something along the lines of SSA SAS things like that? i can look back in my notes and see if this is what you’re learning

Please help!!!!!!!!!​

Answers

Answer:

1/8 or 0.125

Step-by-step explanation:

hope this helped

Multiply the first top and the lower part together
3 x 1 x 7 = 21
7 x 3 x 8= 168
21/168 => 1/18

Which of the following is equivalent to 1/8?
A.
1 to 8
B.
2 to 8
C.
8 to 1

Answers

Answer: 1 to 8
Reason: because there’s 1 of 8 items is the same ratio

Which store offers the best store
Store X:4 cans for $2.38
Store Y:5 cans for $3.00
Store Z:59 cents per can

Answers

Answer:

Store Z

Step-by-step explanation:

1 - Find out what the price per can is at each store

Store X

4 cans for $2.38

2.38price/4can(s) = price per can

Store x is $0.598/can

Store Y

5 cans for 3.00

$3.00/5

$0.60/can

Comparing these to store Z; store Z is still the better deal.

Hope this helps :)

How do I solve this and check all the solutions?

Answers

Answer:

x = 2

Step-by-step explanation:

(Square both sides)

20 - 8x = x^2

(Solve 20 - 8x = x^2)

x = 2 , x = 10

x = 10 is false, so the answer is x = 2.

Answer:

x=2

Step-by-step explanation:

√20-8x=x

2√5-2x=x (by simplfing redical expression)

4(5-2x)=x^2 (square both side)

20-8x=x^2

20-8x-x^2=0

-x^2-8x+20=0

x^2+8x-20=0

x=2

Note:There is a another answer x=-10 But it's wouldn't fit out with this equation

If Osa is in a submarine that is 275 feet below sea level and Jill is hiking a mountain and is at 250 feet above sea level, which person is closest to sea level? Explain how you used math to determine your answer.

Answers

Answer:

Jill

Step-by-step explanation:

Since 250 is closer to 0 (which is the sea level) on the number line compared to 275, Jill is closer to sea level.


1.) Select the correct equation for the following situation. Mariana had 134
crystals in her collection. This was 38 less than Rajesh's collection. How
many crystals are in Rajesh's collection?

38r = 134
r+ 38 = 134
r - 38 = 134
38 - r = 134

Answers

Answer:

r minus 38 equals to 134 this might be m not certain

The correct equation is, [tex]r-38=134[/tex] and Rajesh have 172 crystals .

Let us consider that, Rajesh had r  crystals.

Mariana had 134  crystals in her collection.

Since, Rajesh has 38 more crystal than Marina . So , if we subtract 38 from crystals Rajesh have then both have equal number of crystals.

So,     [tex]r-38=134[/tex]

Now, find crystals present in Rajesh collection.

                   [tex]r-38=134\\\\r=134+38=172[/tex]

Thus, Rajesh have 172 crystals .

Learn more about linear equation:

https://brainly.com/question/11733569

–24 + 12d = 2(d – 3) + 22

Answers

Answer:

d = 4

Step-by-step explanation:

Answer:

d = 4

Step-by-step explanation:

–24 + 12d = 2(d – 3) + 22

–24 + 12d = 2d - 6 + 22

–24 + 12d = 2d + 16

–24 + 12d - 2d = 16

12d - 2d = 16 + 24

10d = 16 + 24

10d = 40

d = 4

Mia pays $178 every 4 months for her piano lessons. At this rate, how much will Mia pay for 3 years of piano lessons?

Answers

Answer:

I think the answer is 734.

Step-by-step explanation:

You do $178 x 4 months = 716

716 x 4 years is 734

Mia pays $178 every 4 months.
So Mia pays $178 3 times in a year.
How much will Mia pay for 3 years of piano lessons.

178 x 3 = $534 = The 1st Year
178 x 3 = $534 = The 2nd Year
178 x 3 = $534 = The 3rd Year

$534 x 3 = $1,602

For 3 years of piano lesson Mia pays $1,602.

А A
B
D
If m_ABD = 64°, and mZCBD = 30°,
then m ABC = [?]°

Answers

Answer:

34 degrees

Step-by-step explanation:

If ABD = 64, and CBD is 30, we can use PWP( Part Whole Postulate)

Step 1.CBD + ABC = ABD

Step 2. Substitute

30 + ABC = 64

Step 3. Isolate ABC

34 = ABC

ABC is 34 degrees

9514 1404 393

Answer:

  34°

Step-by-step explanation:

It should be fairly intuitive that the two smaller angles add to give the value of the larger one. (Even if it's not, the angle sum theorem tells you this is true.)

  ∠ABC + ∠CBD = ∠ABD

  ∠ABC + 30° = 64°

  ∠ABC = 34° . . . . . . . . . subtract 30° from both sides of the equation

working on a song for someone I used to love
I'll go through all of the realities to find you
(If I need you)
Just so I can hold your hand...
Even if they think it's fake...
I want you to understand
that there's a certain miss
and a certain love
and a heartache in my chest
every time i hear your name
and im still lying in my bed
without you....

Answers

Answer:

wowww!! it's very sad and wonderfull

If the expression 4c + 2b + 4d is subtracted from 3c + 4b + 5d then the answer will be

Answers

Answer:

1c 2b 1d

Step-by-step explanation:

did the math

Answer:

c - 2b - d

Step-by-step explanation:

(4c + 2b + 4d) - (3c + 4b + 5d) =

4c + 2b + 4d -3c - 4b - 5d =

c - 2b - d

What’s the answer to g - 16=2

Answers

Answer:

g=18

Step-by-step explanation:

[tex]g-16=2\\g-16+16=2+16\\g=18[/tex]

Hope this helps u.

Please hit the crown :D

Answer:

g = 18

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define

g - 16 = 2

Step 2: Solve for g

Add 16 to both sides:                    g = 18

Step 3: Check

Plug in g into the original equation to verify it's a solution.

Substitute in g:                    18 - 16 = 2Subtract:                               2 = 2

Here we see that 2 does indeed equal 2.

∴ g = 18 is a solution of the equation.

Help!!! I would really appreciate it. Thanks! Answer all three questions!

Answers

Sure!
1) y intercept = 8
2) the slope is -1/2
3)y= -1/2x + 8

1. (0,8)

2. -1/2

3. y = (-1/2)x + 8

how do you simplify 2/-3?​

Answers

Answer:

you cant

Step-by-step explanation:

You can’t it’s to same thing but the decimal is -0.66666667

In a survey of 2,700 people who owned a certain type of​ car, 1,485 said they would buy that type of car again. What percent of the people surveyed were satisfied with the​ car

Answers

Answer:

35%

Step-by-step explanation:

Multiplying a measure
by a scale to produce a
reduced or enlarged
measure

Answers

Answer:

we conclude that:

If the scale factor > 1, the image is stretchedIf the scale factor < 1, the image is reducedIf the scale factor = 1, the image and object will be congruent

Step-by-step explanation:

A dilation is a transformation which generates an image that is the same shape as the original object but in a different size.

The image can be obtained by multiplying the measure of the original object by a scale factor.

If the scale factor > 1, the image is stretched

If the scale factor < 1, the image is reduced

If the scale factor = 1, the image and object will be congruent

For example, if we multiply the measure of the coordinates of the vertex A(2, 2) of a triangle by a scale factor of 2, the image A' is stretched as the scale factor > 1.

Dilation with scale factor 2, multiply by 2.

(x, y) → (2x, 2y)

A(2, 2) → (2(2), 2(2)) = A'(4, 4)

So, the image point A'(4, 4) is enlarged.

Dilation with scale factor ½, multiply by ½.

(x, y) → (½x, ½y )

A(2, 2) → (2(1/2), 2(1/2)) = A'(1, 1)

So, the image point A'(1, 1) is reduced.

Therefore, we conclude that:

If the scale factor > 1, the image is stretchedIf the scale factor < 1, the image is reducedIf the scale factor = 1, the image and object will be congruent

Line b passes through (3, 4) and (0, 2).
is it parallel?

Answers

Answer:

no perpendicular

Step-by-step explanation:

Amalia is scuba diving at a position 24.25 feet below sea level. She descends 0.5 foot each minute for 25 minutes. What is Amalia’s position compared to sea level after 25 minutes?

Answers

Answer:

36.75 feet below sea level

Step-by-step explanation:

Feet she descended in 25min

=0.5×25

=12.25

Therefore, the total feet she dived to

=12.25+24.25

=36.75

Can some one help me in less then five minutes??

Answers

Answer:

x>dy-c

Step-by-step explanation:

х- 1, 2, 3 ,4
y-20, 18,-7, -2.
James modeled the data with a linear best-fit equation. Which X-value
has the largest residual?
A 1
B. 2
C. 3
D. 4​

Answers

I think it’s C, good luck
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