Solve the system of equations.

-5x + 4y = 3
X = 2y - 15

Answers

Answer 1

Answer:

x=9

y=12

Step-by-step explanation:

. Substitute the given value of x into the equation so... -5(2y-15)+4y=3

. y=12

. Substitute the given value of y into the equation x=2y-15 so... x=2 x 12-5

. x=9

.The possible solution of the system is the ordered pair (x,y) so... (x,y)=(9,12)


Related Questions

(Giving brainliest!)
Explain the following in complete sentences:

is the number 1 prime?

Answers

Answer: No because it’s the 1st number

No

Answer:

No

Explanation:

The definition of a prime number is a positive integer that has exactly two positive divisors. However, 1 only has one positive divisor (1 itself), so it is not prime. Hope it’s helps:)

Given that ABCD is a rhombus, what is the value of x?
в
с
(3x + 12)"
A
O A. 19.5
B. 78
O C. 15.8
O D. 26
E. 52
ОО
F. Cannot be determined

Answers

Answer:

A. 19.5

Step-by-step explanation:

Diagonals of a rhombus intersect at right angles. Therefore the angle opposite to AD = 90°.

Thus:

90° + x + 3x + 12 = 180° (sum of ∆)

Add like terms

102 + 4x = 180

Subtract 102 from each side

4x = 180 - 102

4x = 78

Subdue both sides by 4

x = 19.5

Answer:

Step-by-step explanation:

It’s A

It's not multiple choice, anyone know the answer I'm stuck :(

Answers

Answer:

regular polygon of 9 sides has 9 lines of symmetry

CORVETTE CORVETTE CORVETTE

Which points are solutions to the system of inequalities? Select all that apply.
(1, -1)

(0, -2)

(3, -1)

(-3, -2)

(0, 0)

Answers

Answer:

(0,

3) (1, -1)

Step-by-step explanation:

Can someone help me please ?

Answers

Answer:

Step-by-step explanation:

3) AB // CD                Definition of parallelogram

4) ∠ABD ≅ ∠CDB      Alternate interior angles theorem

5) DB ≅ DB                 Reflexive property

6) ΔABD ≅ ΔCDB       A S A congruent

A scientist graphed the locations of the epicenterof an earthquake and all of the places wherepeople reported feeling the earthquake. Shepositioned the epicenter atmath(−1,8)and thefarthest location reported to have felt thequake was positioned at (85, 8). If each unit onthe graph represents 1 mile, how far from itsepicenter was the earthquake felt?

Answers

the earthquake was felt as far as approximately 86 miles away from its epicenter.

How to find what is an earthquake?

The epicenter of the earthquake is located at (-1,8), and the farthest reported location where people felt the earthquake is located at (85,8).

We can calculate the distance between these two points using the distance formula:

d = √((x2 - x1)²2 + (y2 - y1)²2)

where (x1,y1) = (-1,8) is the epicenter and (x2,y2) = (85,8) is the farthest reported location.

Substituting the values into the formula, we get:

d = √((85 - (-1))²2 + (8 - 8)²2)

Simplifying, we get:

d = √((86)²2 + (0)²2)

d = √(7396)

d ≈ 86 miles

Therefore, the earthquake was felt as far as approximately 86 miles away from its epicenter.

An earthquake is a sudden and rapid shaking of the Earth's surface, caused by the movement of tectonic plates beneath the Earth's crust. Earthquakes can vary in size and intensity, from minor tremors to major seismic events that can cause significant damage and loss of life.

To know more about earthquake visit:

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1) Easton went to a concert with some
of his friends. The tickets cost
$29.50 for each person and together
the friends paid $15 for parking. The
total amount spent was $133.
Determine how many people went to
the concert.

Answers

subtract the 15 from the 133
you get 118
divide 29.50 from the 118
you get 4
4 people went to the concert

Gideon is filling a container with sand. How much sand will fit in the container

Answers

Answer:

418cm³

Step-by-step explanation:

volume of cuboid=l×b×h=11×2×19=418c³

Answer:

418 square centimeters.

Step-by-step explanation:

Since the formula for volume is length times width times height, you would have to multiply 11 (length) times 2 (width) first, and you would get 22. Next, you have to multiply 22 with the height (19). After you do this you will get your final answer which is 418 square centimeters.

What is the coefficients of 7h+3

Answers

Answer:

7 is the cosffiecent in this qn

Answer:

The coefficients of 7h+3 are 7 and 3.

Step-by-step explanation:

Coefficients are numbers with out variables.

4.85 + c > - 2.55=what

Answers

Answer:

Step-by-step explanation:

Here you go mate

Step 1

4.85+c >-2.55  Equation/Question

Step 2

4.85 + c > - 2.55  Simplify

4.85 + c > - 2.55

Step 3

4.85 + c > - 2.55  add -4.85 to both sides

answer

c>-7.4

Hope this helps

Easy math questions, I just don't have time

Answers

$1,187.84 was deposited into her bank account
He paid $1,502
He received four ten-dollar bills

Solve the following inequalities

1) -3x +5 > -10

2) 2 (x-5) < -5

3) 4 - 6x ≥ -8

4) -1/2 (2x+6) ≤ -6

Simplify each last expression:

5) 3x+4 - 5x - 8

6) -2 (1/2x - 4) +3x

7) 2xy + 3x - 4xy -8x
Please do this asap its due soon I will give the brainiest.

Answers

Answer:

1) -3x + 5 = -10

-3x = -15

x= -15/-3

X = 5

3) 4-6x = -8

-6x = -8-4

-6x = -12

X = 2

2) 2(x-5)= -5

2x - 10 = -5

2x = 5

x = 2.5

4) -0.5(2x+6) = -6

-x -3 = -6

-x = -6+3

-X = -3 ( both negative will get cancel)

X = 3

A. V < SA

B. V = SA

C. V > SA

Answers

Answer:

B. V=SA

Step-by-step explanation:

The volume is 113.1 and the surface area is also 113.1 so Volume is equal to the Surface Area

Answer:

B

Step-by-step explanation:

HELP ME PLEASE GIVE RIGHT ANSWER WILL GIVE BRAINLIEST

Answers

Answer:

a. The point of the vertex is (h, k)

b. The equation of the line of symmetry is x=h

c. You can tell if the parabola goes up and down by checking if a is positive or negative: if it is positive then it goes up, and it goes down otherwise.

Which of these is a trinomial?
O A. 2x - 7
O B. 5xy
O c. 2y2 + 7y
O D. 2x3 – 7y3 + 14

Answers

i’m thinking it’s D but i’m not too sure
The answer is D I took the test

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Perform the following computation with radicals. Simplify the answer.

Answers

Answer:

[tex] 4\sqrt{3} [/tex]

Step-by-step explanation:

[tex] \sqrt{6} \times \sqrt{8} [/tex]

Multiply

[tex] \sqrt{48} [/tex]

Simplify

[tex] \sqrt{16 * 3} [/tex]

[tex] \sqrt{16} \times \sqrt{3} [/tex]

[tex] 4 \times \sqrt{3} [/tex]

[tex] 4\sqrt{3} [/tex]

Solve each system using ELIMINATION. Remember to check!



4) 4x + y = 8 5) 3x + 5y = 54

–3x – y = 0 6x + 4y = 72

Answers

Answer:

Step-by-step explanation:

Elimitation:

4) add both.

x=8. y=-24

5) multiply 2.

6x+10y=108.

subtract.

6y=36.

y=6.

x=8.

check:

4(8)-24=8. Correct.

-3(8)-24=0. correct.

3(8)+5(6)=54. Correct.

6(8)+4(6)=72 correct.

Hey there!

Given the following system:

4x + y = 8

-3x - y = 0

We do not need to change the equations at all, because the "y"s will already cancel eachother out. When we add the equations together, we get

x = 8

Now, we have to solve for y: We can do so by plugging in the value of x in to one of the equations:

4(8) + y = 8

Now we solve:

4(8) + y = 8

  32 + y = 8

           y = -24

The solution to the first given system is (8, -24)

Now, we can check by plugging the numbers into both equations, and seeing if they are true:

4(8) + (-24) = 8

 32 + (-24) = 8

                8 = 8 ~ TRUE

Now, we check the second equation:

-3(8) - (-24) = 0

 -24 - (-24) = 0

    -24 + 24 = 0

0 = 0 ~ TRUE

Both equations are true, which means that the correct solution to the first given system is (8, -24)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

For the second given system, we are going to have to change one of the equations because, when added, the "x" or "y" values will not cancel out.

3x + 5y = 54

6x + 4y = 72

We can divide the second equation by -2 so the "x" values will cancel out:

-3x - 2y = -36

Now, we add the equations:

3y = 18

And solve for "y":

3y = 18

 y = 6

Now, we plug the "y" value into one of the equations and solve for "x":

3x + 5(6) = 54

 3x + 30 = 54

          3x = 24

             x = 8

The solution to the second given system is (8, 6)

Now, we can check by plugging the "x" and "y" values into both equations:

3(8) + 5(6) = 54

    24 + 36 = 54

             54 = 54 ~ TRUE

Now, we check the second equation:

6(8) + 4(6) = 72

    48 + 24 = 72

             72 = 72 ~ TRUE

Both equations are true, which means that the correct solution to the second given system is (8, 6)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hope this helps! Have a great day, and let me know if you need more help or have questions!

If BD bisects angle ABC, find each value(picture attached)

Answers

Answer:

f

Step-by-step explanation:

(Solve for r) 56 = 7r

Also explain how you got it.

Answers

Answer:

r=8

Step-by-step explanation:

56=7r

first I simplified the equation to the form, which is simple to understand

56=7r

Then I move all terms containing r to the left and all other terms to the right.

-7r=-56

Next I simplified the left and right the side of the equation.

-7r=-56

Then i divided both sides of the equation by -07 to get r.

r=8

Help please

Using the remainder theorem see if (x-2) and (x+5) are factors of the polynomial

X^2+3x-10

Answers

Answer:

See explanations below

Step-by-step explanation:

Given the polynomial function

P(x) = X^2+3x-10

To check whether x-2 and x+5 are factor, we will find x and then show that P(x) = 0

For x-2

x - 2 = 0

x =2

P(2) = 2²+3(2)-10

P(2) = 4+6 -10

P(2) = 10-10

P(2) = 0

Since the remainder is zero, hence x-2 is a factor of the polynomial

Similarly for x+5;

x+5 = 0

x = -5

P(-5) = (-5)²+3(-5)-10

P(-5) = 25-15-10

P(-5) = 10-10

P(-5) = 0

This also shows that x+5 is a factor

You roll a standard number cube 150 times. Predict how many times you will roll a 3 or a 4?

Answers

Answer:

50

Step-by-step explanation:

bc 150/6 is 25 and since u said 2 numbers it'll be 50

50 is the right awncer they was right

Find the measures of the numbered angles in the figure, shown to the right. M<1= M<2= M<3= M<4

Answers

Answer:

[tex]\angle 1 = 101[/tex]

[tex]\angle 2 = 101[/tex]

[tex]\angle 3 = 101[/tex]

[tex]\angle 4 = 101[/tex]

Step-by-step explanation:

Given

The attachment

Require

Solve for [tex]\angle 1, \angle 2, \angle 3, \angle 4[/tex]

We start by solving for [tex]\angle 1[/tex]

[tex]\angle 1 + 79 = 180[/tex] ---- Angle on a straight line

[tex]\angle 1 + 79-79 = 180 - 79[/tex] --- Subtract 79 from both sides

[tex]\angle 1 = 101[/tex]

[tex]\angle 1 = \angle 2 = \angle 3[/tex] --- Corresponding angles;

So, we have:

[tex]\angle 2 = 101[/tex]

[tex]\angle 3 = 101[/tex]

[tex]\angle 1 = \angle 4[/tex] --- vertically opposite angles

So, we have:

[tex]\angle 4 = 101[/tex]

what is 21 + (-21) + (-4)

Answers

Answer:

the answer is -4

Step-by-step explanation:

mark me brainliest

Answer:

-4

Step-by-step explanation:

Canceling out

You calculate the expressions inside the parentheses from left to right and from inner to outer.

Hope this helps!

Brain-List?

Bob's gift shop sold a record number of cards for Mother's Day. One salesman sold 40 cards, which was 4% of the cards sold for Mother's Day. How many cards were sold for Mother's Day?

Answers

Answer:

1000

Step-by-step explanation:

the answer is 1000, and i dont remember how i got it becaus i did mental math and when i get the answer i forgot how i even got it.

The nth term of a sequence is 3n^2/2

Answers

ANSWER: the 2nd term would be 18

3 x 2 = 6
6 x 6 = 36
36 divided by 2 = 18

hgfgderwasgtfvuyibhnojpmk[p

Answers

hfgkljaslkgjlkajs;ldkjg

For P(x) = 2x^4 – 5x^3+x-10, use synthetic substitution to evaluate P(-2). P(1), and P(2).

Answers

Answer:

P(-2) = 2(-2^4) - 5(-2^3) + (-2) -10

= 2(16) - 5(-8) + (-2) - 10

= 32+40-2-10

= 60

P(1) = 2(1^4) - 4(1^3) + (1) - 10

= 2 - 4 + 1 - 10

= -11

P(2). = 2(2^4) - 5(2^3) + (2) - 10

= 2(16) - 5(8) + 2 - 20

= 32-40+2-10

= -20

need help asap pls!!

Answers

Answer:

v=3

Step-by-step explanation:

SP and RQ are congruent, meaning that they are the same.

So, SP=RQ

We know that SP=5v and RQ=v+12

so plug those values into the equation

5v=v+12

then solve for v

4v=12

v=3

Which shape has parallel lines and at least one acute angle



Answers

The shape which has parallel lines and at least one acute angle is; Choice C.

Which shape has parallel lines and at least one acute angle?

From definition, an acute angle is one whose angle measure is less than 90⁰.

Additionally, parallel lines are lines which can never intersect one another.

Therefore, from the definitions above, it follows that the required shape is; Choice C.

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Question 1 (1 point)
Penny spent $35 for 5 pizzas. Which graph correctly represents the unit rate for this
proportional relationship?

Answers

Answer:

D

Step-by-step explanation:

D is the best answer becuase the graph would keep going up and then 5 and 35 would make a point

Answer:

D

Step-by-step explanation:

5 pizzas = $35

35 ÷ 5 = 7

1 pizza = $7

Other Questions
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