can someone please help. im not sure how to do this. if you could explain, you dont even have to answer. please help!!!!!

Can Someone Please Help. Im Not Sure How To Do This. If You Could Explain, You Dont Even Have To Answer.

Answers

Answer 1

Answer:

Step-by-step explanation:

sure lizzie  

soo  elimination method just means we want to cancel out on of the variable by subtracting of add the entire equations to each other... there is another method but this one is pretty good to learn with.

system 1

2x + 2y = -2

3x - 2y = 12

since there is already an easy way to get rid of the y variable lets just add the two equations together, just add term by term

5x  + 0y = 10

if you notice .. just by making an imaginary column.. of each term.. you can just do that single piece by it self.... 2x + 3x = 5x   and 2y +(-2y) = 0  and -2 + 12 = 10  :)

so now I can rewrite our new equation

5x = 10    I can solve this one with my eyes closed  :D  (10/5 = 2 )

x =2   :P

now , since we know x  .. just plug in the known value of x into the 1st equations...  

2(2) +2y = -2

4 + 2y =-2

2y = -2-4

2y = -6

y = - 3   :) ( I had to keep my eyes open that time b/c there was a minus sign floating about and those are too easy to mess up on .. when you do.. don't worry everyone does )

so we know

x = 2  and y = -3  :)

I'll go a little faster on 2.. and I see 3 is good for you to practice on.. just ask later if you have questions on that one.

system 2

4x - 2y = -1

-4x + 4y = - 2

add them again to get rid of the x term

0x +2y = -3

y = - 3/2

plug in y

4x  - 2(-3/2) = -1

4x +3 = -1

4x = -1 - 3

4x = -4

x = -1  

they are being nice and making them easy to start out.. you try system 3


Related Questions

Find the missing angle

Plssssss asap

Answers

193 but i’m not sure

solve 10x-10g(4x-2)=1 ​

Answers

Answer:

Below

Step-by-step explanation:

x=[tex]\frac{1-20g}{10(1-4g)}[/tex]

Answer:

using BODMAS=(4x-2)=(2x)

10x-10g(2x)=

10x=10+(2x)=

10x=20x

divide both sides by 10

10x/10=20x/10

x=20/10

x=2

What is the slope of the line through (–9,6) and (-6, -9)?

Answers

Answer:

y2-y1 / x2-x1

(-9-6) / (-6+9)

= -5

Sorry if wrong

Answer: - 5

Step-by-step explanation:

y2-y1 / x2 - x1

(-9 - 6) / (-6 + 9)

= -15 / 3 = -5

candidate carson received 2310 votes 55% of the total how many total votes were cast

Answers

Answer:3x-x+2=4

Step-by-step explanation: is what i got maybe wrong

Mary, Bianca and Steve are picking apples. Mary picks 264 apples. 1/6 of these apples are green. Bianca picks 150 apples. 28% of these apples are green. Steve picks 340 apples. 15% of these apples are green. Who picks the most green apples? You must show your working out in your workbooks.

Answers

Answer:

Steve picked most green apples among the three people.

Step-by-step explanation:

Given that:

There are three persons Mary, Bianca and Steve who are picking apples.

Few of the apples are green.

We have to find the person who picked the most number of green apples.

Let us first calculate the number of green apples picked by each one of them then we can compare the three values to find the required answer.

Total number of apples picked by Mary = 264

Number of green apples picked by Mary = [tex]\frac{1}{6}[/tex] of the total apples picked by Mary = [tex]\frac{1}{6}\times 264 = 44[/tex]

Total number of apples picked by Bianca = 150

Number of green apples picked by Bianca = 28% of the total apples picked by Bianca= [tex]\frac{28}{100}\times 150 = 42[/tex]

Total number of apples picked by Steve = 340

Number of green apples picked by Steve = 15% of the total apples picked by Steve = [tex]\frac{15}{100}\times 34 = 51[/tex]

We have 3 numbers now, 44, 42 and 51.

Clearly 51 is greatest of them all.

Therefore, Steve picked the most green apples.

5. Decide whether each equation is true for all, one, or no values of x.
a. 2x + 8 = -3.5x + 19
b. 9(x - 2) = 7x + 5
C. 3(3x + 2) – 2x = 7x + 6

Answers

c doesn’t have a value , x equals 0 , x=0

can someone plssss help what is this? what is the algebraic for the following phrase? 7 less than z
A 7z
B z + 7
D z - 7
C z ÷ 7

Answers

Answer:

D cause z is bigger than 8

Answer:

z - 7

step-by-step explanations:

What are the coordinates for point A?
THIS IS A TEST SO PLS ANSWER CORRECTLY

Answers

Answer:

(4,-2)

Step-by-step explanation:

Your answer to this question will be D :)

): What is the expression which should be added to
8 - 3a² + 2a to get the result 5 +40°-7a)?​

Answers

5z+3x=9a is the answer

A town has a population of 14000 and grows at 5% every year. What will be the population after 14 years, to the nearest whole number?

Answers

Answer:

Step-by-step explanation:

Take 14000 and divide by 5 then multiply by 14.

4/10
Jacob leaves his summer cottage and drives home. After
driving for 5 hours, he is 112 km from home, and after 7 hours,
he is 15 km from home. Assume that the distance from home
and the number of hours driving form a linear relationship.
What is the slope and what does it represent?

Answers

Answer:

The slope is -48.5, and this shows that every hour he drives 48.5 km closer to his home.

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

Justify and explain please and thank you if you answered :)

Answers

It’s -2. When the numerator and denominator have different signs, the quotient is negative. If both the numerator and denominator are negative, then the fraction itself is positive because we are dividing a negative by a negative

Pleaseeee helpppp !!!!!!!! Will mark Brianliest !!!!!!!!!!!!!

Answers

Answer:

I think you're supposed to add all the fives together. That is what MY teacher taught me to do :/

Step-by-step explanation:

The shape is a square that is tilted and looks like a rhombus. Just add the 5's together.

Boris has to give medicine to his cat every morning for the next 14 days. How many weeks is this?

Answers

2 weeks every one has 7 days

Please help me ASAP

Answers

Answer:

I recommend you use DESMOS to graph this equation. All you have to do is put the equation into the website and it will give you the graph, as well as points on the graph. Feel free to ask me if you need any help with it.

EDIT: See the attachment below to see the picture of the graph

Graph the line:
y + 3 = 4(x - 1)

Answers

Add 3 to both sides of the equation. Add 4 and 3. Use the slope-intercept form to find the slope and y-intercept.

what is w/5 - 5 > -8?

Answers

Answer:

w > -15

Step-by-step explanation:

(w/5-5>-8)5

w-25>-40

w>-40+25

w > -15

Answer:

w=−12

Step-by-step explanation:

5/3 + 1/8
Help nowwwww pls help

Answers

Step-by-step explanation:

5×8/3×8 + 1×3/8×3

=43/24

=43/24

Answer:

1 19/24

Step-by-step explanation:

Toni and Makayla are working on a craft project. Makayla has 3 yards of ribbon and Toni has 4 yards of ribbon. They cut all the ribbon into pieces that are 1/4 yard long. How many pieces of ribbon do they have?

Answers

Answer:

Toni and Makayla have 16 and 12 pieces of ribbon respectively, 28 in total

Step-by-step explanation:

Fractions

Toni has 4 yards of ribbon and Makayla has 3 yards of ribbon.

The ribbon is cut into pieces of 1/4 yards each.

This means that Toni has:

[tex]\displaystyle \frac{4}{\frac{1}{4}}=16[/tex]

pieces of ribbon and Makayla has:

[tex]\displaystyle \frac{3}{\frac{1}{4}}=12[/tex]

pieces of ribbon.

Toni and Makayla have 16 and 12 pieces of ribbon respectively, 28 in total

I need to find the resultant matrix

Answers

the answers are there

i hope it will help you

a triangle with vértices at A(0,0), B(6,0) and C(-2,-2). What type of triangle is ABC

Answers

Answer:
Scalene

Explanation:
It isn’t equilateral or isosceles. Therefore it must be scalene

What is the equation of the vertical asymptote for the graph below ?
y = 5 + 1 / x + 3

Answers

Vertical asymptotes can be found by solving the equation n(x) = 0 where n(x) is the denominator of the function ( note: this only applies if the numerator t(x) is not zero for the same x value). Find the asymptotes for the function . The graph has a vertical asymptote with the equation x = 1.

The equation of the vertical asymptote is x = -3

The function is given as:

[tex]y =\frac{5x +1}{x + 3}[/tex]

Assume the equation of the function is:

[tex]y =\frac{m(x)}{n(x)}[/tex]

So, by comparison;

We have:

[tex]n(x)=x + 3[/tex]

Set n(x) to 0

[tex]x + 3 = 0[/tex]

Subtract 3 from both sides

[tex]x = -3[/tex]

Hence, the equation of the vertical asymptote is x = -3

Read more about asymptotes at:

https://brainly.com/question/17257427

Alison's dog is 6 pounds more than five times the weight of gales dog what algebraic equation could you make to find G which is the way to gail's dog.

Answers

Answer:

g = (x - 6) / 5

Step-by-step explanation:

Given:

Let :

Alison's dog = x

Gale's dog = g

x is 6 pounds more than 5 times g

Mathematically,

x = 5g + 6

We can solve for g ;

x - 6 = 5g

Divide both sides by 5

(x - 6) / 5 = g

Jon and Mitchel go fishing. The mass of fish Jon caught was three times the mass of
Mitchel's catch. The total mass of fish caught was 13kg. What mass of fish did Jon anc
Mitchel each catch?

Answers

john: 9.75 Mitch: 3.25

Find the distance between line OP the x's and y's are given please answer this with a fraction or decimal, I would appreciate it and give thanks to anyone who can help:)

Answers

Answer:

c ≈ 5.83095189485

Step-by-step explanation:

We can use the Pythagorean Theorem [tex](a^{2} +b^{2} =c^{2} )[/tex] for these kinds of problems.

So, pretend that line is the hypotenuse of a right triangle. One side would be

3 units long and another would be 5 units long. Let's plug that into the theorem.

3² + 5² = c²

Simplify.

9 + 25 = c²

Add.

34 = c²

And now square root both sides.

√34 = c

c ≈ 5.83095189485

A bear cub weighed 10 pounds. Each month it gains 5 pounds. Which equation correctly shows this linear relationship.
A.Y=5x +10
B.Y=10x +5
C.Y=5x-10
D.Y=10x-5

Answers

Answer:

A. Y = 5x + 10

Step-by-step explanation:

The bear gains 5 pounds a month. The X represents the months in which five pounds gradually build. This is represented by 5x. We need to add the bears original 10 pounds so Y = 5x + 10.

Answer:

a is the answer I did dat before

Give two ways to write the algebraic expression p ÷ 29 in words.
the quotient of p and 29
p divided by 29

the quotient of 29 and p
29 divided by p

the product of p and 29
p times 29

p subtracted from 29
p less than 29

Answers

The two ways to write the algebraic expression is the quotient of p and 29 and or p divided by 29. Option A

What are algebraic expressions?

Algebraic expressions are expressions comprising of variables, terms, factors, coefficients, constants.

These expressions are also made up of arithmetic operations such as;

AdditionSubtractionMultiplicationDivisionBracket

From the information given, we have the expression as;

p ÷ 29

It is important to note that the sign for division is '÷' or '/’

Division is an arithmetic operation is also called quotient.

Now, we can say that;

p ÷ 29 is the quotient of p and 29 and or p divided by 29.

Thus, the two ways to write the algebraic expression is the quotient of p and 29 and or p divided by 29. Option A

Learn more about algebraic expressions here:

https://brainly.com/question/4344214

#SPJ

Describe the end behavior of the following exponential function.
f(x) = 3x

A.
As the x-values increase, the function increases towards y = 2.
B.
As the x-values increase, the function increases towards y = 3.
C.
As the x-values increase, the function increases towards negative infinity.
D.
As the x-values increase, the function increases towards positive infinity.

Answers

Answer:

As the x-values increase, the function increases towards positive infinity.

Step-by-step explanation:

I just did this on study island :D

For the exponential function as the x-values increase, the function increases towards positive infinity.

What is an exponential function?

Exponential function is a function that involves exponents. Exponential function has a constant as its base and a variable as its exponent.

According to the given problem,

f(x) = [tex]3^{x}[/tex]

Let the value of x be -1,

⇒ f(x) = [tex]3^{-1}[/tex]

         = 0.33

Now, let the value of x be 1,

⇒ f(x) = [tex]3^{1}[/tex]

          = 3

Hence, we can conclude, as the x-values increase, the function increases towards positive infinity.

Learn more about exponential function here: https://brainly.com/question/15487915

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Can some one help me with this, I can't get it, and i'll give brainliest, 5 star, and all the good stuff.

Answers

a. 2.964
b. 0.262
c. 0.4863

how many minutes of practice does one picture represent

Answers

25 minutes for Monday
20 minutes for Tuesday
15 minutes for Wednesday
15 minutes for Thursday
25 minutes for Friday
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