find the solution to this system 5x - 2y = -11 -2x + 5y = 17 to create x coefficients that are additive inverses equation 1 can be multiplyed by

Answers

Answer 1

Answer:

A term can be a constant or a variable or both in an expression. ... Understanding how to solve math problems becomes easier as one learns ... Additive inverse The opposite of a number or its negative. ... The numbers a, b, and c are the coefficients of the equation and may be ... The arithmetic mean, denoted x, of a set of.

Step-by-step explanation:


Related Questions

what is 189 divided by 82???

Answers

2

8 2 | 1 8 9

1 6 4

2 5

Therefore, 180 divided by 82 = 2 with a remainder of 25

2 with a remainder of 25

Decimal form = 2.304878

if the side of a traingular fiels is in ratio of 6:9:10. if it perimeter is 2500m what is the area of that field​

Answers

Answer:

266634.11 m^2

Step-by-step explanation:

The following information is given in the question

The ratio of the side of the triangular fields is 6:9:10

And, the perimeter is 2500m

We need to find the area of that field

So

Let us assume the 3 sides be x

Here so the sides be 6x,9x, 10x

Now the perimeter = sum of the length of all sides

2500 = 6x + 9x + 10x

2500 = 25x

x = 100

The three sides would be 600,900 and 1000

Now the area of that field would be

As we know that

The Area of the triangle as per the Heron Formula is

[tex]= \sqrt{s(s-a)(s-b)(s-c)} \\\\= \sqrt{1250(1250-600)(1250-900)(1250-1000)} \\\\= \sqrt{1250(650)(350)(250)} \\\\= \sqrt{71093750000}[/tex]

=  266634.11 m^2


[tex] \frac{1}{2} \times \frac{3}{8} [/tex]

Answers

The answer is 3/16 or 0.1875 in decimal form.

Solve for x round your answer to the nearest tenth 13 18 x

Answers

Answer:

x=24.9

Step-by-step explanation:

Use pythagoras theorem to find half of x which is 12.45 then multiply by 2 to get x

Kevin is making trail mix for his hike tomorrow. He has 9
cups of candy coated peanuts, and 2 cups of granola.
How many bags can he make without having any
ingredients left over, but with every bag having the exact
same ratio of peanuts to granola?

Answers

Answer:

2

Step-by-step explanation:

Solve the equation 18 = 3 + 5x for x.

Answers

Answer:

[tex]18 = 3 + 5x \\ 5x = 18 - 3 \\ 5x = 15 \\ x = 3[/tex]

Answer:

X = 3

Step-by-step explanation:

18 - 3 = 15 and 3 x 5 = 15. However there is a way to check which would be doing 5 x 1 + 3 and 5 x 2 + 3 and so on and so on until you find your answer.

find the perimeter of these figures *
please*

Answers

Answer:

The perimeter of figure a is 44 inches, the perimeter of figure b is 72 inches.

Step-by-step explanation:

The sides of figure a is 8; 2; 3; 12; 2; 12; 3; 2, to get the perimeter, add all the sides together, which will be 8 + 2 * 2 + 3 * 2 + 12 * 2 = 8 + 4 + 6 + 24 = 12 + 30 = 42 inches. The sides of figure b is 3; 3; 3; 3; 13; 13; 5; 5; 5; 5; 7; 7, to get the perimeter, add all the sides together, which will be 3 * 4 + 13 * 2 + 5 * 4 + 7 * 2 = 12 + 26 + 20 + 14 = 32 + 40 = 72 inches.

Answer:

a) 44

2 + 8 + 2 + 8 + 12 + 12 = 44

b) 72

13 + 13 + 3 +3 +3 +3 +5 +5 +5 +5 +7 +7 = 72

Step-by-step explanation:

6 plates and 5 cups cost 32.10 dollars. 7 plates and 6 cups cost 37.70 dollars. Each plate costs the same amount as the other plates, and each cup costs the same amount as the other cups. What is the cost of 1 plate? What is the cost of 1 cup?

Answers

Answer:

Plates are 2.80 Dollars and cups are 1.40 dollars

Step-by-step explanation:

Cups = c

Plates = p

6p + 5c = 23.80 ==> multiply by 6 ==> 36p + 30c = 142.80

7p + 6c = 28.00 ==> multiply by 5 ==> 35p + 30c = 140.00

Now use algebra to have the 30c be on one side and the rest on the other:

36p + 30c = 142.80 | -36p

30c = 142.80 - 36p

35p + 30c = 140.00 | -35p

30c = 140.00 - 35p

Now set them equal to each other about the 30c:

142.80 - 36p = 140.00 - 35p

Use algebra to solve for p:

142.80 - 36p = 140.00 - 35p | +36p

142.80 = 140.00 + p | - 140

2.80 = p

Go back to one of the "30c" equations and plug in the value for p:

30c = 140 - 35p

30c = 140 - 35(2.80)

30c = 140 - 98

30c = 42 | /30

c = 42/30

c = 1.4

Answer:

the cost of 1 plate  $4.1

the cost of 1 cup $1.5

Step-by-step explanation:

6p + 5c = 32.10

7p + 6c=  37.70

Multiply the first by 6

Multiply the second by -5

and then ADD both

36p +30c = 192.6

-35p-30c =  -188.5   (30c is cancelled)

p = 4.1

4.1(6) +5c = 32.10

24.6 +5c = 32.10

5c = 7.5

c= 1.5

1.5(5) =7.5

24.6 + 7.5 = 32.10

PLS HELP!!! The figure below has a point marked with a large dot.
First, translate the figure 7 units up.
Then, give the coordinates of the marked point in the original figure and the final figure.

Answers

(3,5) should be your answer .. this is because if you translate the shape up 7 units that means you have to move it up 7 lines .. so if u are to move the shape up 7 lines the marked dot should land on the spot (3,5)

Need helpppp helppp plzzzz 20 points

Answers

Answer: 7^3/7^6= 1/343

Step-by-step explanation: We move 7^-6 to a denominator because we cannot have a negative exponent in the numerator.

So it would be 7^3/7^6

Which then would be 7*7*7/7*7*7*7*7*7

Which would equal 343/117649

Simplify and you get 1/343

it’s 69 bc add 1 to 19

Hi please help thank you

Answers

20
This is because
2x+(6x+20)=180
8x+20=180
8x=160
8x/8=160/8
X=20

Which of the following functions translates the graph of the parent function f(x) = x2 horizontally left 8 units?
Ah(x) = x2 + 8
B. h(x) = (x – 8)
C. h(x) = x2 - 8
D. h(x) = (x + 8)2

Answers

answer is c h(x)=x2-8
It’s C, h(x)=x^2-8
Here is the process;

Estimate the solution of the system x+y=4 2x-y=6 by sketching a graph of each linear function. Then solve the system algebraically. Use your estimate to judge the reasonableness of your solution. The estimated solution is The algebraic solution is The solution is/is not reasonable because​

Answers

Answer:

(10/3, 2/3)

Step-by-step explanation:

You may find it easier to write these two equations x+y=4 2x-y=6 in a column:

x+y=4

2x-y=6

Adding these together will eliminate y:

3x = 10.  Then x = 10/3.

Substituting 10/3 for x in the first equation results in:

10/3 + y = 4

Clear fractions by multiplying all three terms by 3:

10 + 3y = 12

Then 3y = 2, and y = 2/3.

The solution is (10/3, 2/3)

How do u do this problem?

Answers

Answer:

5.5

Step-by-step explanation:

[tex]\frac{1}{2} |x_{1} (y_{2} -y_{3}) + x_{2} (y_{3} -y_{1} ) + x_{3} (y_{1}- y_{2} ) |\\= \frac{1}{2} \times |5(4-5) + 8 (5-2) + 4(2-4) |\\=\frac{1}{2} \times |-5 +24 + -8 |\\=\frac{1}{2} \times 11\\= 5.5[/tex]

What is the area of the triangle ?

Answers

Answer:

I atttached some screenshots of something that explinaed better than I can. Another way to do it is rations. If you cna determine each of the angles, then you can set the sides equal to each other and find the missing sides otherwose this is proballu the best way to do it.

Step-by-step explanation:

He has the answer so just copy what he said

A box contains 3 red pencils, 4 blue pencils, and 8 green pencils. Picking a yellow pencil from the box is

Answers:
Likely
Unlikely
certain
Impossible

Answers

Picking a yellow pencil is Impossible.

Use the triangle shown on the right to answer the question Which equation can you use to solve for a? 30 sin (35) sin(35° ) 0 30 sin (359) sin(60°) sin(85° 30 sin (359)​

Answers

Answer:

congruent acute angle, we will use properties of similar triangles to establish trigonometric function ... θ = - with θ in Quadrant III, what is. ( ) sin θ ? 35. If. ( ). 2 sin. 3 θ = - with θ in Quadrant III, what is. ( ) cos θ ? 36. If. ( ).

28. tan 60°. 29. sin 30°. 30. cos 45°. Use your calculator to find each trigonometric ratio. Round to the nearest hundredth. 31. tan 51°. 32. sin 80°. 33. cos 77°. 34. tan 14°. 35. sin 55°. 36. cos 48°. Skills Practice p. S18

Answer:b

On edge

Step-by-step explanation:

Over 5 days, Kimberly sheared 300 sheep. How many would she be able to shear in 26 days?
What was her rate per day?

Answers

Answer:

Kim shears 1560 sheep in 26 days.

Her rate per day is 60.

Step-by-step explanation:

For 26 days:

[tex]\frac{5}{300} =\frac{26}{x} \\\\5x=7800\\x=1560[/tex]

For per day:

[tex]\frac{5}{300} =\frac{1}{x} \\\\5x=300\\x=60[/tex]

Help!!


Mr. Morris gave his algebra class a test, the results of which are listed below.

68, 92, 74, 75, 86, 90, 92, 81, 60, 82, 77, 80

Shania was absent on the day of the test and had to take the test on a date after the scores were first posted. She earned a score of 99.
Which measure of the
class's test results did Shania's score most change?

interquartile range

mean

median

range

Answers

Answer: median

Step-by-step explanation:

Find the output, y, when the input, x, is 3.

Y=-5x+13

Answers

Answer:

y = -2

Step-by-step explanation:

y = -5x + 13

x = 3

y = -5(3) + 13

y = -15 + 13

y = -2

Answer:

Y = -2

Step-by-step explanation:

Y=-5x+13

Y =-5×3+13

Y= -15+13

Y = -2

There are adults and Children in the Cinema.
There are 40 adults and 25% of children.
what is the total number of people in the cinema?

Answers

Answer:

that's 10 kids

Step-by-step explanation:

There are 50 people in the cinema

25% / 100 = 0.25
0.25 * 40 = 10 children

40 adults + 10 children = 50 people in total

Plzzz help!!! ill givee brainliest!!!!

A student attempted to generate an equivalent expression using the distributive property, as shown below: 2(x + 5) = 2x + 5 What was the mistake made? (5 points) a 2 was not multiplied by x b 2 was not multiplied by 5 c Incorrect sign was used for the first term d Incorrect sign was used for the second term

Answers

Answer:

b) 2 was not multiplied by 5

Step-by-step explanation:

Correct answer: 2x + 10

ILL BRAINLIEST YOU IF YOU GET IT RIGHT

Answers

Answer:

I think the answer is B. If not its probably c. The answer is between those two.

Step-by-step explanation:

Hope this helped

The answer is C bc 180 minus 118 equals w

7(3+5)=
you have to hurry

Answers

7x8 is 56 the answer is 56

Answer:

56

Step-by-step explanation:

7(3+5)=

Use PEMDAS

SOLVE WITHIN PARENTHESIS (3+5);

3+5=8

=8

Multiply and DIVIDE from left to right

7*8=56

=56

Answered by NONE other than the ONE & ONLY #QUEEN herself aka #DRIPPQUEENMO!

HOPE THIS HELPED!!!

Hi!! Please explain how you got the answer, thanks!! :)) ​

Answers

Start out by finding the area of the square.

a = 4²

a = 16

Since all we have to look at is 1/4 of this square, multiply the area by 1/4.

(16)1/4

4

The area of the triangle is 4.

Now we need the area of the circle.

a = πr²

Sub: a = π(2)²

a = π(4)

Since the portion of the circle that covers the triangle is 1/4 of the circle, subtract 1/4 of the area of the circle from the area of the circle.

a = 4 - 1/4(π(4))

a = 4 - 1/4π x 1

a = 4 - 1/4π

Now this is where it's supposed to go, considering the fact that π isn't given a value.

Normally, I'd use 3.14 for π, as the entire population would, and then it would be easy, but obviously that isn't an option.

Now this answer isn't up there, so my best option is to tell you it's most likely c, and I hope I'm right.

Uhh good luck I guess this math test is weird

-Xax

Please please please please please please please please help with my daily thing

Answers

Answer:

A

Step-by-step explanation:

Can some one explain how to do it please. I am so confused.​

Answers

Hi there!

Your job, at least on this triangle, is pretty simple. This is a 45-45-90 triangle.

Because this is a 45-45-90 triangle, both legs are 5. That leaves us to find the hypotenuse, x.

And a 45-45-90 triangle's hypotenuse is easy. You just take the measure of one of the legs, or 5 in this case, and stick a [tex]\sqrt{2\\}[/tex] right next to it. So your answer will be:

[tex]5\sqrt{2}[/tex]

I hope this helps! :)

jim has 6 apples, he gave away 2 apples, how many apples does jim have left

Answers

Answer:

Jim has 4 apples left.

Step-by-step explanation:

If you subtract 6 minus 2 you will get 4.

Answer: 4

Step-by-step explanation:

6-2=4

i know it’s a troll don’t worry

Find the measure of the angle AED in the figure below

Answers

Answer:

112 degrees

Step-by-step explanation:

Michelle read 72 pages in 3 hours. What was her unit rate of pages read per hour?

Answers

Answer:

24 pages per hour

Step-by-step explanation:

72 pages = 3 hours

To find the rate of pages per hour, divide both sides by 3.

72/3 = 24, 3/3=1

24 pages per 1 hour, 24:1

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