Solve the system of equations 3x+2y=223x+2y=22 and -4x+3y=16−4x+3y=16 by combining the equations.

Answers

Answer 1

Answer:

(2, 8)

Step-by-step explanation:

Given the system of equation

3x+2y=22  ... *4

-4x+3y=16 .... *3

Using the elimination method

12x + 8y = 88

-12x + 9y = 48

Add

8y + 9y = 88+48

17y = 136

y = 136/17

y = 8

Recall that

3x+2y=22

3x+2(8)=22

3x + 16 = 22

3x = 22-16

3x = 6

x = 6/3

x = 2

Hence the required solution (x, y) is (2, 8)


Related Questions

#8

Please help
Extra 100 points
And brainliest

Answers

Answer:

When x < 0 (Option 1)

Step-by-step explanation:

The answer to your question would be Option 1, or when x < 0. When you create a table with f(x) and g(x), they're only ever equal when x = 0, which is when f(x) and g(x) both equal 1. When the numbers go into negatives for each equation, f(x) becomes exponentially bigger. Making f(x) > g(x) true when x < 0.

Hope this helps!

Please help with this will mark you brainliest

Answers

Answer:

choose to places and with this formula, you can find it easily;

(y_2 - y_1)/(x_2 - x_1)

first place can be (1, 3) and the second can be (2,5):

5-3/2-1 =2

and it would be 2

Nick was thinking of a number. Nick adds 11, then divides by 6 to get an answer of -7. What was the original number?

Answers

Answer:

-53/6

Step-by-step explanation:

x + 11 / 6 = -7

Subtract 11/6 from both sides to isolate x.

x = -53/6

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Answers

Answer:

length L = [tex]\sqrt[2]{18}[/tex] or [tex]3\sqrt{2}[/tex]

slope = 45 degree

neither

Step-by-step explanation:

A river has a normal depth of 10 feet. After a rain storm, the river is rising a 1.5 feet per hour. What is the river's depth after 4 hours?

Answers

Answer:

The answer is 16 feet

Step-by-step explanation:

You do 1.5 feet times 4 hours and you get 6 feet and than you add 10 and 6 and you get 16 feet after 4 hour.

what is the value of x

Answers

Answer:

x<-19    

Step-by-step explanation:

hope that helps

Section 25 Exercise's
Practice and Application Exercises
In Exercises 1–54, express each probability as a fraction reduced to
lowest terms.
In Exercises 1-10, a die is rolled. The set of equally likely outcomes
is (1,2,3,4,5,6). Find the probability of rolling
1. a 4.
2. a 5.
3. an odd number.
4. a number greater than 3.
5. a number less than 3.
6. a number greater than 4.
7. a number less than 20.
8. a number less than 8.
9. a number greater than 20.
10. a number greater than 8.

Answers

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Answers

Answer is option B.

[tex] \frac{ - 1}{ 25 } [/tex]

Explanation:

5 to the power -2 can be written as

[tex] {( {5}^{2})}^{ - 1} [/tex]

which will be

[tex] {25}^{ - 1} [/tex]

which will be

[tex] \frac{ - 1}{ 25 } [/tex]

Four points are labeled on the number line. Which point represents the value of ∣−12∣?

Answers

Is it the absolute value? If so it’s 12.

Answer:

c

Step-by-step explanation:

   

Select each expression that is equivalent to 3/16 if x = 3/4
I need an answer ASAP.
A. 2x+1/16
B.3/4 to the power of 2 - 6/16
D. x-1/4
E 2x-x2-3/4

Answers

Answer:

Step-by-step explanation:

B

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Write the decimal as a fraction.

Answers

1.27 is 127/100 as a fraction I’m not if that’s what you needed but hope it helped
Hey there !
Refer to the pic above !

I still need help. Ty. >333

Answers

Answer:

Option 2, 3, and 4 are correct.

Step-by-step explanation:

The diagram shows a regular polygon
What is the value of x?
How do I solve this

Answers

Answer: x=120°

Step-by-step explanation:

What you are looking for is the value of the exterior angle of the regular polygon.

For a n-sided regular polygon, the external angle is given by the formula 360°/n.

Because the shape in this example is a regular triangle, the value of n is 3.

360°/n

=360°/3

=120°

Therefore, x=120°

Help please, also this is khan academy

Answers

Answer:

A

Step-by-step explanation:

Yoy get A by combining like terms.

Does this question have any correct answer? I can't see how any of the answer choices are correct.

Answers

Answer:

the only one that would make sense is D because it says 1 pair of parallel and the left one only has one pair

Step-by-step explanation:

(you might want to ask your teacher though because its kind of misleading)

HELP FAST ANSWER IF YOU ARE 100% sure. Any decimal answers are wrong so if the answer you got is a decimal don't put as answer or you will be reported. Thank y'all!

Answers

Answer: Picture with answer below:

Step-by-step explanation:

Answer: 891ft

Step-by-step explanation:

Find tan A and tan B.

Answers

Step-by-step explanation:

[tex] \tan(a) = \frac{26}{10} = 2.6 \\ \tan(b) = \frac{10}{26} [/tex]

Which number is the smallest?

5.48 x 10-8

5.48 x 10 -8

3.24 x 10-5

3.24 x 10 -5

2.85 x 10-6

2.85 x 10 -6

1.28 x 10-4

Answers

Answer:

option D ..............

Answer:

[tex]5.48 \times {10}^{ - 8} \\ [/tex]

The number with a greater exponent is the smallest.

In a video store, a DVD was $13.50. It was now marked, "10% off". What was the sale price of the DVD?

Answers

Answer:

$12.15

Step-by-step explanation:

13.50 x 0.9 = 12.15

Answer:

$12.15

Step-by-step explanation:

10% of 13.50 is 1.35. Subtract 1.35 from 13.50 to get 12.15

Simplify each expression

Answers

Answer:

Simpify each expression :

1) B

2)B

3)C

4)A

5)A

6)C

Find each product, and simplify the expression :

7)B

8)A

9)A

Step-by-step explanation:

I will send the explanation in a little time.

What is the surface area of the cylinder with height 8 ft and radius 7 ft? Round your
answer to the nearest thousandth.
Helppp

Answers

Answer:

660

Step-by-step explanation:

Here is the equation to get this answer-

A=2πrh+2πr2=2·π·7·8+2·π·72≈659.73446

then you round the 659.73446 to get 660

PLEASE HELP! - MULTIPLE CHOICE - YOU WILL GET 10 POINTS - MATH

Answers

Answer:

56°

Step-by-step explanation:

Answer:

56

Step-by-step explanation:

36 + x = 90

x = 90 - 34

x = 56

Find the value of x by finishing solving the system shown below.

Answers

Answer:

x = 10

Step-by-step explanation:

Since both equations give y in terms of x, equate the right sides

3x - 28 = - 2x + 22 ( add 2x to both sides )

5x - 28 = 22 ( add 28 to both sides )

5x = 50 ( divide both sides by 5 )

x = 10

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Answers

Answer:

i) p = 4

ii) p = 8

iii) p = 12

Step-by-step explanation:

First of all, we have the general relation as follows;

c = 2.79p

i) 2.79p = 11.16

p = 11.16/2.79

p = 4

ii) 2.79p = 22.32

p = 22.32/2.79

p = 8

iii) 2.79p = 33.48

p = 33.48/2.79

p = 12

See image for question and answer choices

Answers

Answer:

B.

Step-by-step explanation:

So, lets remember a few things first.

#1: The formula for finding the answer is A^2+B^2=C^2

#2: A is the opposite side, B is the adjacent side, and C is the hypotenouse side.

Now lets plug in what we already know, and see if we canf igure out the annswer:

A^2+12^2=13^2

Now I am going to stop us here. This is your equation that will find the answer. In your question, they use x^2, A^2 is a variable you can use instead. But looking at this, answer B and my equation I wrote above are exactly the same.

If you want, here is how I further solved it, this might give you a better grasp on what to do for future problems:

Ok, not  too bad, the A is the unkown value, which is the opposite side.

Now, how do we figure this out? Well, we just need to sovle for A.

To do this, lets clean up our equation by first sqauring all the values(except for the unkown):

A^2+144=169

Ok, that looks better, now lets just subtract the adjeacent side(b), which is 144, from the hypotenouse side(c), which is 169.

This will now look like:

A^2=25(169-144=25)

Ok, just one more step to go. Just square root both sides of the equation, this way, we will get ride of the ^2 on A(opposite side), and get A alone.

([tex]\sqrt{A^2}=A[/tex])=([tex]\sqrt{25}=5[/tex])

A=5

This is your answer.

how do you solve something like this?

Answers

Answer:

to find the value of x have to know that they would all add up to 180 degrees. so subtract 98 from 180. then you would have to find the angel of the part on the left.

Step-by-step explanation:

Answer:

X = 41

Step-by-step explanation:

this triangle is isosceles triangle, so

X + X + 98 = 180 ( being triangle)

2X + 98 = 180

2X = 82

therefore : X = 41

The volume of a child's model plane
is 1200cm cube.
The volume of the full size plane is 4050 m cube.
Find the scale of the model in the fom 1:n.​

Answers

Answer:

Is 10B and you get like 1000

Answer:

you get like 1000

Answer this question to get marked as barinliest!!!!

Answers

Answer:

the third one

Step-by-step explanation:

Answer: C

Step-by-step explanation:

I don't understand what to do here. Can someone please explain?
Please show all of your steps in your answer.

Parallelogram PQRS is shown in the coordinate plane below. What is the perimeter of parallelogram PQRS?

Answers

Answer:

42

Step-by-step explanation:

Opposite sides of a parallelogram are congruent

You need to find the distance between Q(6, 6) and R(1, -6) using the distance formula.  

PS = QR = [tex]\sqrt{(6 - 1)^{2} + (6 + 6)^{2} }[/tex]

     = [tex]\sqrt{5^{2} + 12^{2} } = \sqrt{25 + 144} = \sqrt{169} = 13[/tex]

PQ = SR = 8

Perimeter = 13 + 13 + 8 + 8 = 42

The model y=1.8x−76.9 y=1.8x−76.9 represents the relationship between the temperature (°F) and the number of ice cream cones sold. Using the model, approximate the number of ice cream cones sold when it is 85°F. Round your answer to the nearest whole number.

Answers

Answer:

76 ice cream cones

Step-by-step explanation:

Given the model : y=1.8x−76.9 ;

Which shows the relationship between temperature and number of ice cream cones sold ;

Using the model, the predicted number of ice cream cones sold when temperature is 85°F

Hence, x = 85

Putting x = 85 in the model and solve for y

y = 1.8(85) −76.9

y = 153 - 76.9

y = 76.1

Hence, the number of ice cream cones sold is 76

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