Mathematics High School

y= -2x – 6
2x + y = 5

Answers

Answer 1

Answer:

No solution

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/CoefficientsCoordinates (x, y)Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

y = -2x - 6

2x + y = 5

Step 2: Solve for x

Substitution

Substitute in y:                                                                                                  2x + (-2x - 6) = 5Combine like terms:                                                                                         -6 ≠ 5

Here we see that -6 does not equal 5.

∴ the systems of equations has no solution.

Related Questions

Find four consecutive even integers whose sum is 84. Find the integers.

Answers

Suppose the integers are n , n+2 , n+4 and n+6.
84=n+(n+2)+(n+4)+(n+6)=4n+12.
Subtract 12 from both ends to get.
72=4n.
Divide both ends by 4 to get.
n=18.
So the integers are: 18 , 20 , 22 , 24.

Graph the following systems of equations and determine the solution of the system .​

Answers

Answer:

We can find the solution to a system of equations by graphing the equations. Let's do this with the following systems of equations:

PLSSSSSSSS HELPPPPPP ASAPPPPP

Answers

I believe that the answer is A

Two trains, train A and train B, weigh a total of 251 tons. Train A is heavier than Train B. The difference of their weights is 181 tons. What is the weight of each train?

Answers

Train A weighs 181 tons and train B weighs 70 tons.

Consider the figure shown below, find the value of
g


​

Answers

Given:

A figure of a triangle.

To find:

The value of g.

Solution:

Law of Cosines:

[tex]a^2=b^2+c^2-2bccosA[/tex]

Using the Law of Cosines for the given triangle, we get

[tex]g^2=8^2+7^2-2(8)(7)cos(65^\circ)[/tex]

[tex]g^2=64+49-112(0.4226)[/tex]

[tex]g^2=113-47.3312[/tex]

[tex]g^2=65.6688[/tex]

Taking square root on both sides.

[tex]g=\sqrt{65.6688}[/tex]

[tex]g=8.10363[/tex]

[tex]g\approx 8.10[/tex]

Therefore, the value of g is about 8.10 units.


If the cost price of a bag is AED 2176 and its selling price is AED 2497 then find the profit

Answers

Answer:

321 AED

Step-by-step explanation:

2497 - 2176 = 321 AED

What is the percent change from 35 to 63? Indicate whether it is a percent increase or decrease.

Answers

Answer:10%

Step-by-step explanation:

its is a percent increase because 35 to 63 is going to be 10% going up.

multiples of 7 between 50 and 80​

Answers

Answer:

Step-by-step explanation:

7, 14, 21, 28, 35, 42, 49, 56, 63, 70, ... 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, ... 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, ... 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, ...

X/15 = -10 can someone help

Answers

Answer:

x = -150

Step-by-step explanation:

x/15 = -10

Multiply both sides by 15.

The farmer owned 100 acres of land. A year later he bought more property and then owned 140 acres. Is this a percent increase or decrease? Find the % change. Round to the nearest whole percent, if necessary.

Answers

Answer:

The percentage change (an increase) wa 40%.

Step-by-step explanation:

The beginning number of acres was 100; adding 40 more brought that to 140 acres.  This was an increase.  Dividing the increase (40) by the starting value (100) yields 0.40.  Finally, multiplying this result by 100% yields 40%.

The percentage change (an increase) wa 40%.

To make 4 batches of cupcakes, it takes 6 cups of flour. How many cups of flour are needed for 1 batch?

Answers

Answer:

1.5

Step-by-step explanation:

First you divide 6 by 4. It looks like this 6/4.

Then you get 1.5 cups of flour.

Good Luck!

Answer:

3/2 cups

Step-by-step explanation:

4 batches = 6 cups

1 batch of cupcakes = (6/4) cups of flour.

hence, 3/2 cups of flour are needed for 1 batch.

(answer ASAP! thanks.) "As part of a math project, Joel recorded the types of vehicles passing an intersection in one hour. His results are shown on the table below. Explain how you can determine the percent of each type of vehicle. Then calculate the percent of vehicles that are not trucks."
Car: 73
Small truck: 16
Large truck:6
Motorcycle: 2
Bicycle: 3

Answers

Step-by-step explanation:

There is a total amount of vehicle of 100

which is good because now you can say 73% is cars 16% is small trucks 6% is large trucks and 2% motorcycle and 3% bicycle. Adding the trucks (small 16, large 6) gives us 24% so you can do 100% - 24% and get 74%. Thanks and goodbye!

**PLEASE HELP ILL MARK BRAINLIEST** the table shows the values of y for different values of x. What are the rate of change and the initial value for y

Answers

D
you can also write it as y = - 3/2x + 3

Answer:

It's D. The initial value of y is 3 because 6,9 and 12 are 3 digits apart, and it always is Y over X

In ΔJKL, the measure of ∠L=90°, the measure of ∠J=18°, and KL = 6.1 feet. Find the length of JK to the nearest tenth of a foot.

Answers

Answer: 19.7

Step-by-step explanation:

Answer:

19.7

Step-by-step explanation:

what is meant by algebraic equation​

Answers

Answer:

An algebraic equation is an equation used in algebra which uses numbers and letters. The letters are representing unknown numbers and are called variables.

Answer:

An algebraic equation is "a mathematical statement in which two expressions are set equal to each toher."

If that is too complicated to understand, look at it like this. An algebraic equation usually has two things: an equal sign, and letters. For example, this is an algebraic equation: x + 3 = 7.

Step-by-step explanation:

Please help with this question.

Answers

Answer:

if I have my calculations right it would be £120

PLZ HELP ME :( you can pick neither or both or one of the triangles in the screenshot

Answers

5+5y= 47
A^2 - 47 = ?

I suck at math lololol

Answers

2 and 4

Step-by-step explanation:

This image shows an example on corresponding angles.

Answer:

Angle 2 and 4

Answer if you know the answerss only please

:WARNING: WILL BE REPORTING>
UWU

Answers

Answer:

1. There are 18 girls

2. (BLANKS IN ORDER) 5, 18, 36, 30

Step-by-step explanation:

with the ratio given, you divide the lager by the smaller then multiply accordingly to the others( keep in mind it depends which number is on what side)

a spectre is viewing the six cars of a roller coaster as it travels down a hill at an amusement park. What is the closest to the total length of the six cars​

Answers

Answer:

your answer will be Option D.32.5 ft

Step-by-step explanation:

hope it helps you!!

Let’s say we are using 12 inch diameter balloons filled with helium to lift objects off of the surface.

*Let’s say that 5 balloons can lift 60 grams of weight.

What is the unit rate for weight/balloon? ________

Answers

Answer:

its 12

Step-by-step explanation:

I WILL GIVE BRAINLIEST!!!

Answers

Answer:

Step-by-step explanation:

Please answer the question above.

Answers

Answer:

50

Step-by-step explanation:

We know angles in a straight line add up to 180, therefore:

2x + 50 + 30 = 180

2x + 50 = 180 - 30

2x + 50 = 150

2x = 150 - 50 = 100

2x =  100

x = 50

Answer:

Step-by-step explanation: Since we know the angle of a line is 180 degrees. We can use that.

1. 180-30 because we already know that angle is 30 degrees.

2. We are left with 150 degrees so we know the large angle is 150 degrees to check we do this.

3. 150=2x+50

4. 100=2x Divide both sides by two and get

5. x=50

What is 1/6 as a percentage

Answers

Just take 1 divided by 6
1/6=0.16666667

Answer:

16[tex]\frac{2}{3}[/tex]%

Step-by-step explanation:

To convert from a fraction to a percentage, you can multiply the fraction by 100%.

[tex]\frac{1}{6}[/tex] × 100% = 16[tex]\frac{2}{3}[/tex]%

You reverse the inequality symbol when you multiply or divide both sides of an inequality by the same negative number true or false

Answers

Answer is in the file below

tinyurl.com/wpazsebu

Answer:

When you multiply both sides by a negative value you make the side that is greater have a "bigger" negative number, which actually means it is now less than the other side! This is why you must flip the sign whenever you multiply by a negative number.

Step-by-step explanation:

Your Welcome

25% of the normal price of a watch is $15. What is the normal price?

Answers

Answer:

60

Step-by-step explanation:

15 times 4

1 1\4 - 3\8 what is the answer

Answers

Answer:  19/8

Step-by-step explanation:

11/4 can be view as 22/8 by multiply 2 to the denominator and numerator.

11/4 - 3/8

= 22/8 - 3/8

= 19/8

Identify the area of the composite shape.
71 cm squared
98 cm squared
34 cm squared
56 cm squared

Answers

Answer:

71, the explanation is in the other question

Solve for x, rounding to the nearest hundredth.
550.3^ x = 50

Answers

Answer:

- 2.18

Step-by-step explanation:

550 × [tex]3^{x}[/tex] = 50

[tex]3^{x}[/tex] = [tex]\frac{1}{11}[/tex]

[tex]log_{3}[/tex] [tex]\frac{1}{11}[/tex] = x

x = [tex]log_{3}[/tex] 1 - [tex]log_{3}[/tex] 11

[tex]log_{3}[/tex] 1 = 0

[tex]log_{3}[/tex] 11 = 2.1826583386

x ≈ - 2.18

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Answers

i think the correct answer would be b:]
D is the answerrrrrrrrrrrrrrrrrrr
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