-6х + 5 y = 1
6х + 4 y = –10

Answers

Answer 1
Times top equation by -1
6x-5y=-1
6x+4y=-10
Subtract bottom equation by top
-9y=9
y=-1
substitute this into an equation
-6x-5=1
add 5 to both sides
-6x=6
x=-1
y=-1 x=-1
Answer 2

Answer: 16-!

Step-by-step explanation:


Related Questions

your uncle is offering to

Answers

Answer:

tgerggeergegrergeger

Step-by-step explanation:

Answer:

give me money

Step-by-step explanation:

PLEASE HELP!!!!!
provide the value of the polynomial P(x)=8x2-9x+12 at x=-3.

Answers

Answer:

111

Step-by-step explanation:

Answer:

x3−8x2+19x−12 = (x−1)(x−3)(x−4)

Step-by-step explanation:

Welcome =D

What does - |15/-3| equal ?

Answers

Answer:

Step-by-step explanation:

It equals 60 because 15-3 is 12 and 12 of 6 is 60 and minus 2

simplify: 1/5(10x - 20)

Answers

the answer is 2x-4

Factor out 5 from the expression and then reduce the numbers with the greatest common factor 5

Each term of the first polynomial is ____________ to each term in the second polynomial

Combine any _______ ___ to simplify

Answers

9514 1404 393

Answer:

multipliedlike terms

Step-by-step explanation:

To multiply two polynomials, each term of the first polynomial is multiplied to each term in the second polynomial. Combine any like terms to simplify.

Which ordered pairs are solution(s) of y > 4x - 9? Select all that apply A (-1,3) B. (0, -9) C. (1.0) D. (2, 1)​

Answers

Answer:

A.

C.

D.

Step-by-step explanation:

Use the x-coordinate in place of x and compare the solution to the y-coordinate. All of the answers to these options are true.

Hope it helps!

Use the pythagorean Theorem to prove the three sides of the triangle are the three sides of a right triangle. Show all of your work. 2,4,2,√3

Answers

Answer:

[tex]2^{2}[/tex] + [tex](2\sqrt{3}) ^{2}[/tex] = 4 + 4 * 3 = 16 = [tex]4^{2}[/tex]

Step-by-step explanation:

The Pythagorean Theorem states that the two shorter sides of a right triangle squared and added together will equal the longest side (hypotenuse) of the right triangle squared. The longest side of this right triangle is 4, 4 squared is 16. The two shorter sides of the right triangle are 2 and [tex]2\sqrt{3}[/tex], squared individually would be 4 and 12, and added together they also equal 16. These sides are a valid input for the Pythagorean Theorem, so these three sides are the sides of a right triangle. 2 and [tex]2\sqrt{3}[/tex] being the legs of the right triangle, and 4 being the hypotenuse.

Michael drove from home to work at an average speed of 50 mph. His return trip home took 30 minutes longer because he could only drive at 40 mph. Find the distance from his home to his work. A. [3 pts) Define variables to represent the unknowns and setup the necessary equations to answer the question. B. [4 pts) Algebraically solve the equation you created and express your final answer using a complete sentence and appropriate units. (You will not receive full credit if a trial and error method is used in place of an algebraic method.)

Answers

Answer:

100 miles

Step-by-step explanation:

Given :

To work :

speed = 50mph

Let time taken = x

From work :

speed = 40mph

30 minutes = 30/60 = 0.5

Time taken = x + 0.5

Distance from home to work :

Distance = speed * time

To work distance = from work distance

This can be algebraically expressed as :

50 * x = 40(x + 0.5)

50x = 40x + 20

50x - 40x = 20

10x = 20

x = 20/10

x = 2

Hence,

Distance = 50 * 2 = 100

The the distance from home to work = 100 miles

The distance from Michael home to work is 100 miles

Speed

Speed is the ratio of the total distance travelled to the total time taken. It is given by:

Speed = distance / time

Let d represent the distance from Michael home to work. Hence:

50 = d/tt = d / 50

He took 30 minutes (0.5 hours) longer when driving at 40 mph, hence:

40 = d/(t + 0.5)t = (d - 20)/40

d/50 = (d - 20) / 40

40d = 50d - 1000

10d = 1000

d = 100 miles

The distance from Michael home to work is 100 miles

Find out more on speed at: https://brainly.com/question/4931057

Which family lives the farthest from Disneyland? *
Family A:
Family D:
y = 95-55x
Family B:
Distance
50
Family B lives 120 miles from Disneyland
and drives 60 mph.
40
30
Family C:
20
Hours
10
Distance
from
Disneyland
80
5
0
1.5
0
0.2 0.4 0.6 0.8 1
1.2 Time (hours)
O Family A
Family B
Ο Ο Ο
Family C
O Family D

Answers

Awnser would be family a

2.5 quarters weigh approximately 1 ounce. How many pounds would you expect a
collection of quarters worth $15 to weigh?

Answers

Answer:

1.5 pounds

Step-by-step explanation:

$15=60 quarters

2.5x16 = 40 quarters per pound

60/40 = 1.5 pounds

Which inequality is represented by this graph? 0 - 345> x O 0 -34.5 0 -355 cx​

Answers

Answer:

Step-by-step explanation:

If x is the white dot on the graph:

From what it looks like, x is right between -35 and -34 x (which is -35.5).

If that is the case then none of the answers are correct since -35.5 is equal or less than x. (the sign looks like this:  "[tex]\leq[/tex]" )

But if you have to choose one of the answers then number 4 (-35.5 < x) would be closest.

what is 190 × 180=7?

Answers

Answer:

34200 is not 7

false

Step-by-step explanation:

false 190 times 180 equals 34,200

Solve for X:
5x - 14 = 8x + 4

a X = -6
b
X = 10/3

c
X = 6
d
X = -18/13

Answers

Answer:

a) x = -6

Step-by-step explanation:

5x - 14 = 8x + 4

-14 = 3x + 4

-18 = 3x

x = -6

Answer:

A) 5 (-6) - 14 = 8 (-6) + 4

- 30 - 14 = - 48 + 4

- 44 = - 44

Step-by-step explanation:

La respuesta correcta es la A, ya que x = - 6

NEED HELP HURRY!!!!!
Is it similar or not similar ?

Answers

Answer:

not similar because the lengths aren't the same.

Which point of concurrency always lies on the interior of a triangle? Check all that apply.
A circumcenter
B. orthocenter
C. incenter
D. centroid

Answers

Answer:

incenter hope it helps

Step-by-step explanation:

The point of concurrency that always lies on the interior of a triangle is to be considered as the incenter.

What is incenter?

Here the incenter refer to the concurrency point of the angle bisectors with respect to all of the interior angle.

Here, the point where three angle bisectors of the angles of the triangle should be met out is called as the incenter.

Also, the incenter should always be lies within the triangle.

Therefore, the option c is correct.

Learn more about triangle here: https://brainly.com/question/22176005

A penguin starts at 15 meters above sea level and ends at 7 meters below sea level. What is the change in elevation?

Answers

Answer:

22 meters

Step-by-step explanation:

If the penguin goes from 15 meters above sea level to sea level (0 meters), they traveled 15 meters in elevation.

Then they traveled another 7 meters when going 7 meters below sea level.

15 + 7 = 22

Hope this helps :)

what are scale drawings

Answers

Answer:

A drawing that shows a real object with accurate sizes reduced or enlarged by a certain amount (called the scale). The scale is shown as the length in the drawing, then a colon (":"), then the matching length on the real thing.

Step-by-step explanation:

Answer:

Answer down below!

Step-by-step explanation:

A scale drawing is a drawing that is downsized. They are usually used to see how small to make a particular thing.

What central tendency means to find the number that occurs most often?


Median


Mean


Mode


Range

Answers

Answer:The mean is the most frequently used measure of central tendency because it uses all values in the data set to give you an average. For data from skewed distributions, the median is better than the mean because it isn't influenced by extremely large values.

Step-by-step explanation:

What does |-71 equal?

Answers

Answer:

71 (or 7.... read explanation)

Step-by-step explanation:

If you mean | -71 | then it's 71.

If you mean | -7 | then it's 7

Absolute values turn negative numbers into positive numbers.

Answer:

7

Step-by-step explanation:

How many grams of aluminum hydroxide are produced when 8 moles of aluminum sulfite react in excess sodium hydroxide ?

Answers

Answer:

Number of moles Aluminium sulfide

1 mole of sulfide contains 150 g

Therefore; 16.2/150  

              = 0.108 moles  

The mole ratio of Al2S3 : Al(OH)3 is 1:2

Therefore; moles of Aluminium hydroxide will be;

 = (0.108 × 2)

 = 0.216 moles  

But, 1 mole of  Al(OH)3 contains 77 g

Therefore, the mass of aluminium hydroxide is

  0.216 moles × 77

=  16.632 g

Step-by-step explanation:

Решите уравнение
a)-6(x-2) = 4r-17
B) 10x +307 - 20) = 13-20
6) (18-19) -(4-720) = -73
г)-3(4-5y)+2(3-6y)=-39​

Answers

Answer:

a)-6(x-2) = 4r-17

B) 10x +307 - 20) = 13-20

6) (18-19) -(4-720) = -73

г)-3(4-5y)+2(3-6y)=-39

how do you know how many solutions are possible for a system of equations

Answers

Answer:

Step-by-step explanation:

If the slopes are the same but the y-intercepts are different, the system has no solution.

If the slopes are different, the system has one solution.

If the slopes are the same and the y-intercepts are the same, the system has infinitely many solutions.

Answer:

Step-by-step explanation:

If you mean linear systems. If lines have a different slope there will be one solution. If they have the same slope (parallel) and a different y intercept there are zero solutions. If they have same slope and y intercept than they are the same line and have an infinite number of solutions.

What is the surface area of this rectangular pyramid?

Answers

Answer:

i believe the answer is 266.08

Step-by-step explanation:

The game Super Sherman Brothers cost $15 to make. It is then marked
up 400%. What is the selling price?

PLZ HELP ITS DUE IN 40 MINUTES

Answers

Answer:

60

Step-by-step explanation:

A percentage is divided by 100 to get it's decimal form. So 400/100 = 4.0

Now you take the value given and multiply it by the percentage in decimal form.

So in this case.

15*4 = 60

How many solutions does this equation have? 6x - 8 = -4x - 12*
No Solution
Infinitely Many Solutions
1 Solution

Answers

Answer:

1 solution

Step-by-step explanation:

3(1.5x+9)= tell me NOW

Answers

Answer:

x = -6

Step-by-step explanation:

Simplifying

3(1.5x + 9) = 0

Reorder the terms:

3(9 + 1.5x) = 0

(9 * 3 + 1.5x * 3) = 0

(27 + 4.5x) = 0

Solving

27 + 4.5x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-27' to each side of the equation.

27 + -27 + 4.5x = 0 + -27

Combine like terms: 27 + -27 = 0

0 + 4.5x = 0 + -27

4.5x = 0 + -27

Combine like terms: 0 + -27 = -27

4.5x = -27

Divide each side by '4.5'.

x = -6

Simplifying

x = -6

Determine if the following triangles are similar. If yes, choose the correct postulate; if no,
choose no conclusion.
AA-
SSS-
SAS-
no conclusion

Answers

Answer:

WHAT THE MATH IS THIS!!!

Step-by-step explanation:

Answer:

SSS

Step-by-step explanation:

Because it shows all the lengths of each side.

Amy and three of her friends went to lunch. The total bill was $54.00. If they wanted to leave a 20% tip how
much more is added tot he bill?
If the girls split the bill evenly, how much does Amy pay?

Answers

Answer:

$16.20

Step-by-step explanation:

Bill: $54.00

Tip: 20%

People: 4

To figure out 10% of the bill, you need to move the decimal point over to the left one place: $5.40

10%: $5.40

5.40 times 2 = $10.80

54.00 + 10.80 = 64.80

Grand Total= $64.80

Since there are 4 people, we need to divide by 4:

64.80 divided by 4 = $16.20

(-2+6y+3x)(-3) distributive property to remove the parentheses

Answers

Answer:

6-18y-9x

Step-by-step explanation:

Fluffy the bunny ate 1/3 of a carrot in the morning and she ate some more at night by the end of the day she still had 1/5 of the carrot left to eat how much of the carrot did fluffy the bunny eat at night

Answers

Answer:

2/15

Step-by-step explanation:

first you have to make both numbers have an equal denominator the subtract how much that was left from how much she Initially ate

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