Can anybody give me the answer for this.. I have no idea how to do it and it would really improve my grade

Can Anybody Give Me The Answer For This.. I Have No Idea How To Do It And It Would Really Improve My

Answers

Answer 1

Step-by-step explanation:

The question is to combine the equations, so we should add them.

- 2x -4y = -26

+ - 3x -3y = - 12

(same signs add, different signs subtract)

-5x -7y = -38

(in the question there are two boxes at the side of the eqaution you should put (+)sign there as youre adding them)

If this question was supposed to be subtracted it would give a while different ans)


Related Questions

When air is pumped into an automobile
tire, the pressure is inversely proportional to
the volume. If the pressure is 35 pounds
when the volume is 120 cubic inches, what
is the pressure when the volume is 140
cubic inches?

Answers

Answer:

The pressure P₂ = 30 pounds when volume is 140 cubic inches

Step-by-step explanation:

We are given

Pressure P₁ = 35 pounds

Volume V₁ = 120 cubic inches

Volume V₂ = 140 cubic inches

We need to find Pressure P₂

The formula used will be: [tex]V_1P_1=V_2P_2[/tex]

Putting values and finding P₂

[tex]V_1P_1=V_2P_2\\120\times 35=140\times P_2\\4200=140\times P_2\\P_2=\frac{4200}{140} \\P_2=30 \ pounds[/tex]

So, the pressure P₂ = 30 pounds when volume is 140 cubic inches

What is the y-intercept of the line that passes through the points (2, -1) and
(-3, 9)?

Answers

Answer:

the y intercept is (0, 3)

Step-by-step explanation:

y = mx + c

where m is the slope and c is the y-intercept

[tex]m = \frac{y_2 - y_1}{x_2 - x_1 }[/tex]

[tex]m = \frac{9 - -1}{-3 - 2 }[/tex]

[tex]m = \frac{10}{-5}[/tex]

[tex]m = -2[/tex]

hence, y = -2x + c

input a pair of values, in this case i will use (2, -1)

-1 = -2(2) + c

-1 = -4 + c

-1 + 4 = c

3 = c

please help me solve this problem. ​

Answers

Answer:

Step-by-step explanation:

There is no solution

Answer: There is no such value of X.

Step-by-step explanation:

If you get this wrong, im sorry but im sure that its the right answer.

Decrease 10kg by 10%

Answers

Answer:

if you decrease 10 kg by 10% you get 9 kg

The value after the decrease in 10% is 9 kg

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the total amount be A = 10 kg

Now , the percentage decrease in value = 10 %

So , the equation will be

The amount after decrease =
Total amount - ( percentage decrease in value x total amount )

And , the equation is

The amount after decrease = 10 - ( 10/100 ) x 10

                                              = 10 - 0.1 x 10

                                              = 10 - 1

The amount after decrease = 9 kg

Therefore , the value is 9 kg after decrease in 10 %

Hence , The value after the decrease in 10% is 9 kg

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An alloy consists of nickel, zinc, and copper in the ratio 2:7:9. How many pounds of nickel have to be used to create alloy that contains 4.9lb of zinc

Answers

Step-by-step explanation:

please mark me as the brainliest answer and please follow me

Answer:

the first one is wrong.

Step-by-step explanation:

Charlotte makes crepes using 5/8 cup of milk for every 1/2 cup of flour. She wants to know the amount of milk uses per cup of flour.

Answers

Answer:

1 1/4

Step-by-step explanation:

I got it right.

The milk uses per cup of flour will be 5/4 cups of milk per cup of flour.

What is Algebra?

Algebra is the study of algebraic expressions, while logic is the manipulation of those concepts.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to answer the problem correctly and precisely.

Charlotte makes crepes using 5/8 cups of milk for every 1/2 cup of flour.

She wants to know the amount of milk used per cup of flour. Then we have

⇒ (5/8) ÷ (1/2)

⇒ (5 / 8) x (2 / 1)

⇒ 5 / 4 cups of milk per cup of flour

The milk uses per cup of flour will be 5/4 cups of milk per cup of flour.

More about the Algebra link is given below.

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12. In New Mexico, the state sales tax rate is 5.125%. If the price of a digital
camera sold in New Mexico is $294.35 including sales tax, what was the list price
of the digital camera? *



Help me lol I don’t wanna fail .

Answers

Answer:

15.08 if u round but it's really 15.079

Corey, Laura, Paige and Jacob are baking a pumpkin pie. Each of them brings a different ingredient. When the pie is finished, 1/4 of the cinnamon that was brought is left, 1/3 of the nutmeg, 1/2 of the ginger, and 5/8 of the pumpkin remains. Corey's ingredient was used the most. Laura's ingredient was used the least. More of Paige's ingredient was used than Jacob's. Who brought the ginger?

Answers

1/4 cinnamon was left, so 3/4 was used.

1/3 nutmeg was left, so 2/3 was used

1/2 of ginger was left so 1/2 was left

5/8 of pumpkin was left so 3/8 was used.

Corey's was used the most, 3/4 is the largest used, so Corey had the cinnamon.

Laura's was used least, 3/8 is the smallest amount so Laura had the pumpkin.

2/3 is more then 1/2, so there was more ginger used than nutmeg.

More of Paige's was used, so Paige had the ginger.

A polynomial identity is shown, where p stands for a polynomial.

x3+y3=p(x2−xy+y2)
ON TIMED ASSESMENT PLEASE HELP ASAP

Answers

Answer:

p=x+y

Step-by-step explanation:

Answer:

p=x+y

Step-by-step explanation:

that is the answer

Find the scale length of 15cm and 3cm.
Please help if you can thank youuu​

Answers

Answer: 5

the scale length of 15cm and 3cm is 15/3 = 5

Step-by-step explanation:

The boundry of a park is shaped like a circle

Answers

Answer:

what is the question? a circle is 360 degrees if that is what you're asking.

what’s the question though

your bill is $9.99. you leave a 10% tip. what is the final price of your meal?

Answers

10.10 should be the final price

please give brainliest as i’m trying to get to the next rank.

thanks!!

The formula A = Pe^rt calculates the amount an investment earning a nominal rate of r compounded continuously is worth. Show that the amount of time it takes for the investment to double in value is given by the expression ln2/r.

Answers

Answer:

t = In2/ r

Step-by-step explanation:

Given the formula : A = Pe^rt

For investment to double ;

Final amount (A) = 2 * initial investment (p)

A = 2p

Hence,

2p = pe^rt

2 = e^rt

Take the In of both sides

In2 = rt

Divide both sides by r

In2 /r = rt /r

In2/ r = t

t = In2/ r ; Hence, the proof

The formula for obtaining the time taken when the amount is double the principal is ln2/r.

Given that;

A = Pe^rt

A = amount

P = principal

r = rate

t = time

Now we are told that;

A = 2P

Hence;

2P = Pe^rt

2 = e^rt

ln 2 = rt

t = ln2/r (QED)

Learn more: https://brainly.com/question/9352088

PLEASE HELP AS SOON AS POSSIBLE (THANK YOU VERY MUCH IF YOU DO)

Answers

Answer:In this equation, we can start by understanding that "x" has a value of 8, as given in the ordered pair. When multiplied by 5, this leads to "40 - 2y = 30". Next, we can subtract 40 from both sides of the equation. This leads us to a value of "-2y = -10". The next step would be to divide both sides by -2 as a way of isolating "y", which leads us to a final value of "y = 5". The final ordered pair would be (8,5).

Step-by-step explanation:

Douglas has a box with 49 paper clips.
Of the paper clips, 15 are yellow, 9 are
red, 6 are blue, 11 are orange and 8
are green. Douglas randomly picks 2
paper clips from the box.

If the first paper clip is red, what is the probability that the second paper clip is blue?

Answers

Answer:

6/48 is the likely possibility that he will pull out a blue one.

Step-by-step explanation:

The first thing you will look at is how many blue there is and in this case there is 6. All you have to do (if it didn't already) is add up all of the paperclips and put the blue total number to get your answer. So if there was 49 but he drew out one to make it 48.  So the answer is 6/48

i need help with the group 1 and group 2, what do i write in the boxes :((

Answers

I don’t see anything it’s a black screen

find the side length?

Answers

Answer:

4

Step-by-step explanation:

4y+1=5y-3

-1y=-4

y=4

A recipe calls for 1 1/2 cups of mayonnaise and 3/8 cups of pecans. How much mayonnaise should be used if 1 cup of pecans is used?

Answers

Answer:

4 cups of mayonnaise.

Step-by-step explanation:

The ratio of the amount of pecans comparing reality and the recipe is:

1 : 3/8

= 1/(3/8)

= 8/3

Hence, to find the amount of mayonnaise that should be added:

8/3 * 3/2

= 8/2

= 4 cups

Hope this helped!

A Confession to my Friends
(HardCoreGamer808, ItsKennadi)
U guys are the best. Love u.
Stay Strong

Answers

Aww, that's sweet, but why don't you just text them?

Answer: Love is for the weak loll

a quiz has 25 questions every correct answer scores 3 points Each incorrect answer loses 2 points. A question not answered scored 0 points. a student answers 15 questions 10 are correct how many points does he have?

Answers

Answer:

20

Step-by-step explanation:

10x3=30

5x-2=-10

10x0=0

30-10=20

20 points

Dwayne and Alisha both correctly graphed a standard normal curve. Which of the following statements is true?
A) Neither the means nor the standard deviations of Dwayne’s and Alisha’s graphs must be the same.
B)The means of Dwayne’s and Alisha’s graphs must be the same but not the standard deviations.
C) The standard deviations of Dwayne’s and Alisha’s graphs must be the same but not the means.
D)Both the means and the standard deviations of Dwayne’s and Alisha’s graphs must be the same.

Answers

Answer:Both the means and the standard deviations of Dwayne’s and Alisha’s graphs must be the same.

Step-by-step explanation:

The solution is, the function  y=10+×. is plotted below.

What is a function?

A unique kind of relation called a function is one in which each input has precisely one output. In other words, the function produces exactly one value for each input value. The graphic above shows a relation rather than a function because one is mapped to two different values. The relation above would turn into a function, though, if one were instead mapped to a single value. Additionally, output values can be equal to input values.

here, we have,

The x-values are input into the function machine. The function machine then performs its operations and outputs the y-values. The function within can be any function.

It is a straight line because the degree of the variable or its maximum power is one.

Put x = 0

y = 10 + 0 = 10, therefore one point (0,10)

Put y = 0

0 = 10 +x

Another point since x = -10. (-10,0)

As shown in the graph below, a straight line should be drawn through both locations.

Any point on the line that does not satisfy the equation is a nonexistent point.

Hence the function  y=10+×. is plotted below.

Learn more about the function, by the following link.

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Complete question:

Dwayne graphed the equation y=10+×. Which point does the graph not pass through?

you sailed 33.2 units away and found treasure at -22 units find where the ship started x + -33.2 equals -22
Please.help I am on a timer!​

Answers

Answer:

2 is the asnwer hard to explain have a good TEST!!

Step-by-step explanation:

what the slope of (19,-12) (5, 16)​

Answers

Answer:

The slope is -28/14

-3/8(-4y+z) what is the answer to this? By simplifying.

Answers

Answer:

3y/2 - 3z/8 is the answer

Answer:

Step-by-step explanation:

Line a is parallel to line b. If the measure of <2 is 78°, what is the measure of <5?

Answers

Answer:

The measure of angle 5 is 102°

Solve -0.8(10 - x) = 36

Answers

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

Actually Welcome to the Concept of the Linear equation.

Solving we get as,

-0.8(10-x)=36

=> -8 + 0.8x = 36

=> 0.8x = 36+8

=> 0.8x = 44

=> x = 44÷0.8

=> x = 55

x= 55.

The solution of the expression will be;

⇒ x = 55

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ -0.8 (10 - x) = 36

Now,

We can solve the expression as;

The expression is,

⇒ -0.8 (10 - x) = 36

⇒ - 0.8 × 10 + 0.8x = 36

⇒ - 8 + 0.8x = 36

⇒ 0.8x = 36 + 8

⇒ 0.8x = 44

⇒ x = 44 / 0.8

⇒ x = 55

Thus, The solution of the expression will be;

⇒ x = 55

Learn more about the mathematical expression visit:

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10.6n - 45.92 = 18.8 solve for n​

Answers

Answer:

Step-by-step explanation:

10.6n - 45.92 = 18.8                    Add 45.92 to both sides

10.6n = 18.8 + 45.92                   Combine like terms on the right

10.6n = 64.72                              Divide by 10.6  

n = 64.72 / 10.6

n = 6.11

Solve for c.

a (b – c) = d


a) c= d - ab/a

b) c= ab – d/b

c) c= ab – d/a

d) c= ab + d/а

Answers

Answer:

[tex]c=\frac{ab-d}{a}[/tex]

Therefore, the option 'c' is true

Step-by-step explanation:

Given the expression

[tex]a (b - c) = d[/tex]

Let's solve for c

[tex]a (b - c) = d[/tex]

Step 1: Add -ab to both sides

[tex]ab-ac+\left(-ab\right)=d+\left(-ab\right)[/tex]

[tex]-ac=-ab+d[/tex]

Step 2: Divide both sides by -a

[tex]\frac{-ac}{-a}=\frac{-ab+d}{-a}[/tex]

[tex]c=\frac{ab-d}{a}[/tex]

Hence, we conclude that:

[tex]c=\frac{ab-d}{a}[/tex]

Therefore, the option 'c' is true

Answer:

C) c=ad-d/a

Step-by-step explanation:

just took the test

How long is 50% of 60 minutes?

Answers

Answer:

30 minutes

Step-by-step explanation:

60 divided by 2 = 30

lable min

Solve for x.
(1/9)^x=27^x/9^2x-1

Answers

Answer:

x=-2

Step-by-step explanation:

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