Mathematics High School

Find the value of x in the solution to the system of equations shown.
y = 12x +7
y = -6x +25

Answers

Answer 1

Answer: 1. x= y/12 - 7/12

2. x=y/6 + 25/6

Step-by-step explanation:

Answer 2

Y=12x+7
2y=-12x+50
3y=57
Y=19
19=12x+7
12=12x
X=1

Related Questions

In circle D with m \angle CDE= 60m∠CDE=60 and CD=3CD=3 units, find the length of arc CE. Round to the nearest hundredth

Answers

Answer:

Length of arc CE = 3.14 unit (Approx.)

Step-by-step explanation:

Given:

Radius of circle = 3 units

Angle between radius = 60°

Find:

Length of arc CE

Computation:

Length of arc = [θ/360][2πr]

Length of arc CE = [60/360][2(2/7)(3)]

Length of arc CE = [60/360][2(3.14)(3)]

Length of arc CE = [1/6][6(3.14)]

Length of arc CE = 3.14 unit (Approx.)

Answer:

15.08

Step-by-step explanation:

360/48 (2π18)

Select the correct expressions.
Identify the equivalent expressions of 412x + x - 3) - 3x + 3 by substituting x = 2 and x = 3.
9x - 9
9x - 1
9x + x - 9
9(x - 1)
4(3x - 3) + 3 - 3x

PLEASE I’LL GIVE BRAINLIEST

Answers

Answer:

9x -9

9(x - 1)

4(3x-3) - 3x + 3

 

( Hope this helps ) ＜（＾w＾）＞

plz answer this ones

Answers

Answer:

44

Step-by-step explanation:

it's 44 because median is alwys in between and simply look at the scale

need help solving to complete the square ​

Answers

Answer:

b=9 and b=-21

Step-by-step explanation:

first step: move 195 to the other side by adding to get:

b^2+12b=189

now to find the constant you take the b value which is 12 divide that by 2 and square it. then add the product to both sides. 12/2=6, 6^2=36

b^2+12b+36=189+36

next factor b^2+12b+36.

(b+6)^2=225

square root both sides to get:

b+6=15 and b+6=-15

solve by subracting 6 to both sides and you get the 2 final answers.

b=9 and b=-21

A watch I bought
for £1500
increases in value
by 9% a year for n
years.
Work out how
years it would take
to double my
money.

Answers

Answer:

About one year

Step-by-step explanation:

1500*0.9=1350

24-4x=2x
show your work, will mark brainliest

Answers

Answer:

x=4

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

24−4x=2x

24+−4x=2x

−4x+24=2x

Step 2: Subtract 2x from both sides.

−4x+24−2x=2x−2x

−6x+24=0

Step 3: Subtract 24 from both sides.

−6x+24−24=0−24

−6x=−24

Step 4: Divide both sides by -6.

−6x /−6  = −24 /−6

x=4

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the linear equations.

==> 24-4x=2x

==> 24 = 2x+4x

==> 24 = 6x

===> x = 24/6

===> x = 4

Add 5 1/5 and 4 3/5 as a fraction

Answers

Answer:

9 and 4/5

Step-by-step explanation:

Write down the number eleven thousand,eleven hundred and eleven in figures

Answers

Answer:

12,111

Step-by-step explanation:

Please Help!!! I'll give brainliest

Answers

Answer:

Step-by-step explanation

didnt regroup for one part

Need help!! don't know what I'm doing

Answers

Answer:

1308

____________

The correct answer is 1308.

3+3 what is it i need help please

Answers

6 fooo take this down

re-write -3x−8y−4−87z in an expression using only addition.

Answers

Answer:

-3x + (-8y) + (-4) + (-87z)

Step-by-step explanation:

Please help will giv brainlist

Answers

Answer:

abcdefg!!!

Step-by-step explanation:

Write a real-life word problem that matches the equation ( 1 5 ) ÷ 3 =

PLS HELP

i honestly need help with this. i must create a word problem that uses the problem stated above. how do i make this a word problem. please excuse if my typing is a little off. thanks

Answers

Answer:

55555555555555555566666

Answer:

omg lol okay i love this:

Step-by-step explanation:

one day bob, billy, and sara went to the store to buy cookies.

they bought a box of 15 cookies.

THERE ARE TWO WAYS THIS STORY CAN GO:

NUMBER ONE:

bob, billy, and sara decided to split the bill. each cookie was one dollar. they each payed $5.

NUMBER TWO

when they got home, bob, billy, and sara decided to eat the cookies. they didn't know how to spilt them :(

they each took one cookie until they had an even amount. each child got 5 cookies.

THE END LOL I LOVE THIS

Pls help I’m in a call by myself with my math teacher

Answers

i’m pretty sure it’s 70 m i think

I need help with this ​

Answers

with what lol ? u didn’t show the picture

Answer:

i need question from this

Answer this please I’ll give brainlest if you answer it correctly!

Answers

Answer:

V≈75.4in³

Step-by-step explanation: This is what I got. I hope its right!

Answer:

Step-by-step explanation:

75.4

Can somebody help me with this. Will Mark brainliest.

Answers

Answer:

The answer is 36 I believe

Step-by-step explanation:

Answer:

Step-by-step explanation:

sin(x) = 5.9/8.1

x = arcsin(5.9/8.1) ≅ 47°

which expression results in an irrational number? (see image)

a) II
b) III
c) I, III, IV
d) II, III, IV

Answers

C is the correct answer..

What is the value of x in the representation below
3,7,-3,-7

Answers

Answer:

-3

Step-by-step explanation:

Let's rewrite it as an equation

3*x + 2*1 = 7*(-1)

3x + 2 = -7

3x = -9

x = -3

The answer is -3 after going through the equation

Emily has 6 gallons of water josh has 23 quarts of water. How many more points does Emily have more than josh

Answers

Answer:

2 pints

Step-by-step explanation:

To determine the amount of pints that Emily has more than Josh, gallons and quarts have to be converted to pints and the value is then subtracted

1. Convert gallons and quarts to pints

1 gallon = 8 pints

6 gallons = 8 x 6 = 48 pints

1 quart = 2 pints

23 quarts = 2 x 23 = 46 pints

2. Determine the difference in the amount of pints Emily has and the amount Josh has

48 pints - 46 pints = 2 pints

PLSS HELL ME IM CRYING!! WILL GIVE YOU BRAINLYEST!!!

Amanda used a standard deck of 52 cards and selected a card at random. She recorded the suit of
the card she picked,
and then replaced the card back into the deck. She compiled the results in the table below.

a) Based on her results, what is the experimental probability of selecting a heart?
b) Based on her results, what is the theoretical probability of selecting a heart?

Answers

Answer:

34%

Step-by-step explanation:

I meant be a couple PREcents OFF BUT IM SORRY THIS IS MY BEST ANSWR :( hope this helps tho :)

Please help its due in a hour

Answers

The side lengths of a triangle are 5,8 and 12 is this a right triangle?
A. no, because 5 + 8 ≠ 12.
B. yes, because 5² + 8² = 12².
C. no, because 5²+ 8² ≠ 12².
D. yes, because 5² + 8² < 12²
Step-by-step explanation:
Pythagoras theorem states c^2=a^2 + b^2
5^2=25
8^2=64
25+64=89

How many solutions will the system of equations have? System: y = 2x + 2 and y = x + 4

Answers

y=-2x+2
y=x2-2x+4

is the value of x such that when you plug it into both equations, they both produce the same value of y, or the value of x such that

-2x+2=x2-2x+4

solving this equation----------> x2=-2, taking square root of both sides gives x= ±√2i, or the system has no real solutions but has 2 complex solutions. If you graph both functions in the xy-plane, where x, y are real numbers, you' ll see they do not intersect, which implies there is no real number solutions.

Omari buys a computer for $1,083. She
makes a down payment of 20%. She pays
$144.40 per month to finish paying for
the computer. How many months will it
take Omari to finish paying?

Answers

Answer:

6 months.

Step-by-step explanation:

To find the answer, we first need to find out how much Omari paid for the down payment. To find this, you multiply 1083*0.20 and you get $216.60. So we subtract the down payment from the total leaving us with $866.40. Now to find out how many months it would take Omari to pay, we divide 866.40/144.40 since each month she pays $144.40 a month. Once you divide 866.40/144.40, you are left with an answer of 6 months.

A storé is offering a 20% discount on all items. Write an equation for the relationship between the discount price of an item, d, and its original price, p.


HELP THANK S

Answers

Answer:

There are many ways you can write this as an equation:

[tex]d=p-20 %[/tex]%

[tex]d=.8p[/tex]

[tex]d=p-.2p[/tex]

solve by square root 4x^2=64

Answers

X= 4, -4...................

HELP ASAP!!!!! A circle is shown. Secant A D and tangent E D intersect at point D outside of the circle. Secant A D intersects the circle at point B. The length of A B is a, the length of B D is 10, and the length of D E is 12.
Which equation results from applying the secant and tangent segment theorem to the figure?

12(a + 12) = 102
10 + 12 = a2
10(a + 10) = 122
10(12) = a2

Answers

Answer:

C)

10(a + 10) = 12 2

Applying the secant-tangent segment theorem, the equation that will result using the figure given is: C. 10(a + 10) = 12².

What is the Secant-tangent Segment Theorem?

The secant-tangent segment theorem states that if a tangent and a secant intersect at a point outside a circle, then the square of the measure of the products of the secant segment and its external secant segment equals the square of the measure of the tangent segment.

Thus, using the figure given, the equation that results from applying the secant-tangent segment theorem would be: C. 10(a + 10) = 12²

Learn more about the secant-tangent segment theorem on:

https://brainly.com/question/26826991

#SPJ2

use the distance formula to find the distance between the two points (-3, 3) and (2, 2) give the exact length (leave in radical form if it is not a perfect square). but please show your work so i can understand. its ok if u cant show ur work tho thank you!

Answers

Answer:

[tex]\sqrt{26}[/tex]

Step-by-step explanation:

Calculate the distance d using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = (- 3, 3) and (x₂, y₂ ) = (2, 2)

d = [tex]\sqrt{(2+3)^2+(2-3)^2}[/tex]

   = [tex]\sqrt{5^2+(-1)^2}[/tex]

   = [tex]\sqrt{25+1}[/tex]

    = [tex]\sqrt{26}[/tex]

I need some help with this important question it's for a important grade pls someone really help me with this question.​

Answers

Answer:

45º

Step-by-step explanation:

A triangle always has 180º

C is a right angle which is 90º. Proof is because of the square.

So now we have 90º left and 2 angles left.

90 ÷ 2 = 45

So your answer is 45º

MARK BRAINLY

Make sure to hit the THANKS button :D

  V

  V

Answer:

36

Step-by-step explanation:

17 is the hypotenuse.

For angle A, 10 is the opposite leg.

sin A = opp/hyp

sin x = 10/17

x = sin^-1 10/17

x = 36

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