Solve the simultaneous equations
2x + 5y = 16
- 2x + 3y = 8

Answers

Answer 1

Answer:

2x+y= -2, x + 2y = 2

x+y=3 , 2x-8y = 19

6x^2+3y^2=12 , x +y = 2


Related Questions

Franco said that when the speed and distance are known,you only have to multiply them to get the time. Is Franco's statement correct? Explain why or why not.​

Answers

Answer:

No, you have to divide

Step-by-step explanation:

Speed = distance/time

distance/speed = time

485 [tex]485 divided by 9[/tex]by 9

Answers

Answer:

54.3

Step-by-step explanation:

485 / 9 = 54.3333(ect)

You just round and it would be 54.3

54.3 or just 54, first person who answered was correct, credits to them!

can someone help solve? will give brainliest

Answers

Answer:

Step-by-step explanation:

Your answer

About all the sides are equal so we can say (10x + 44) side's triagle is twice than another triangle

So, 10x + 44 = 2( 8x - 23)

..... 10x +44 = 16x -46

...... X = 15

Mark it as Brainlist answer. Follow me.

Help with math work please I am bad at math the question is on the image!!

Answers

In my knowledge

2 × 8 + 5 = 21

Hope it helps ;)

For the first square it’s gonna be 2 so 2 x 8 is 16 so now you put 5 next because 2 x 8 is 16 and plus 6 equals 21

Write an equation (division) with fractions that equals 6/8
:)

Answers

Answer:

3/4 ÷ 1/2

RECHECK:

3/4 ÷ 1/2  

3 / 8 x 2 / 1  = 6/8

hOPE ITS RIGHT!

Answer:

Step-by-step explanation:

HCF of 6 and 8 is 2

6÷2 / 8÷2 = 3/4

help me with maths :)

Answers

sin J: 5/13, 0.38
cos J: 12/13, 0.92
tan J: 5/12, 0.42

sin K: 12/13, 0.92
cos K: 5/13, 0.38
tan K: 12/5, 2.40

I BET NO ONE KNOWS THIS How many moles of helium are in 3.5 x 10^22 atoms of helium? _______ mol He

Answers

Answer:

Step-by-step explanation:

0.226 gram.

Find the value of x.

Answers

Answer: x = 20

Step-by-step explanation:

The angle is 90 degrees so we can make an equation

with it.

3x + 10 + x = 90

Combine like terms

4x + 10 = 90

subtract 10 from both sides to cancel it out

4x = 80

Now divide by 4 to leave x by itself

x = 20

Now you can check if it's correct by plugging in x to the equation given

3(20) + 10

60 + 10

70

20 + 70 = 90 degrees

Answer:

D: 20 degrees

Step-by-step explanation:

First, we add 3x+10 and x together because they are within a right angle, which is 90 degrees. This gives the equation 4x+10=90. We solve from here.

We subtract 10 from both sides to isolate the x-variable. 90 minus 10 equals 80. This gives us the equation 4x=80. To further isolate the x-variable, we divide both sides by 4. 80 divided by 4 equals 20.

This leaves us with x=20.

Hope this helped!

HELP QUICK!! solve by substitution and show work please

Answers

Answer:  You should solve by equal method not substitution.  y=7     x=2

Step-by-step explanation: Equal value method is when two things equal each other and in this case both 3x+1 and 5x-3 equal y so they also equal each other.   3x+1=5x-3                  add 3 to each sides

                      3x+4=5x                     subtract 3x from each side

                      4=2x                           divide by 2

                        x=2                                                             solve for y=3x+1

                                                                                                           y=3(2)+1

                                                                                                          y=7

Arkadaşlar cevapları neler​

Answers

Answer:

hi

Step-by-step explanation:

i translated your question…

and

[tex]x - 4 = 5 \\ x = 5 + 4 \\ x = 9[/tex]

[tex]3 - x = - 4 \\ x = - 4 - 3 \\ x = - 7[/tex]

[tex]5 - x = 7 \\ x = 7 - 5 \\ x = 2[/tex]

hope it helps

Have a nice day bye

can somebody help me

Answers

Answer:

m=1/2

Step-by-step explanation:

your answer is right

m=1/2 hope this helped

write Down a rational number that lies between -9 and -8​

Answers

A rational number would be 81/10 or 8.1

select all the numbers between 80 and 100 that have exactly 4 factors, one of which is 5.
80
85
90
95
100

Answers

Answer:

90.

Step-by-step explanation:

Here 5 is one of the 4 prime factors, so dividing the lower (80) and upper limit (100) by 5 we have new lower limit 16 and new upper limit 20.

So the product of other 3 factors should be greater than 16 and less than 20. And we can have it from 18 only. Hence the number is 90.

The numbers between 80 and 100 having factor 5 are

80,  85, 90, 95, 100

16 = [tex]2^{4}[/tex]

17 = 17

18 = 2× 3 × 3

19 = 19

20 = [tex]2^{2}[/tex] × 5

90 = 2 × [tex]3^{2}[/tex] × 5

Use the coordinate plane to help you identify the length of each leg then use the Pythagorean Theorem to find the length of CD​

Answers

Answer:

the answe is 10.30

Step-by-step explanation:

im also from k12 lol

The yield in bushels from a grove of orange trees is given by
Y = x(600 − x),
where x is the number of orange trees per acre. How many trees will maximize the yield?
_________ trees

Answers

Answer:

Y=x(600-x)

Step-by-step explanation:

How many trees?

500

A hotel manager is adding a tile border around the​ hotel's rectangular pool. Let represent the width of the​ pool, in feet. The length is 5 more than 3 times the​ width, as shown. Write two expressions that represent the perimeter of the pool which exspressions are right


2(4p+5)
8p+5
8p+10
4p+5
4(p+3p+5)
2p+3p+5

im almost out of points plss help

Answers

Answer:

A and C

Step-by-step explanation:

Width = pLength = 3p + 5

Perimeter:

2(w + l) = 2(p + 3p + 5) =2(4p + 5) =8p + 10

Correct options are A and C

Answer:

2(4p+5)8p+10

Step-by-step explanation:

to understand thisyou need to know about:algebracreating algebraic expressionPEMDAStips and formulas:parameter of rectangle:2(l+w)let's solve:

let width be p

according to the first condition

The length is 5 more than 3 times the width

therefore

the length is

3×p+5

3p+5

Parameter of a rectangle

=2(l+w)

=2(3p+5+p)

=2(4p+5) {combine like terms}

=8p+10{distribute 2}

Write an Equation given the point (1, -1) and a rate of 2.

Answers

Answer:

y+1=2(x-1)

Step-by-step explanation:

use point slope form

y = mx + b

plug in the numbers to find b

-1 = 2(1) + b

simplify

-1 = 2 + b
-3 = b

write out the equation with the new info

the answer should be:
y = 2x - 3

ay you should help me with this tyty

Answers

Answer:

C. [tex]m=20[/tex], [tex]n=10[/tex]

Step-by-step explanation:

Since the triangle is a special 30°-60°-90° triangle, the hypotenuse is twice the size of the shortest leg. The long leg is [tex]\sqrt{3}[/tex] of the short leg.

wich one doesn't belong

Answers

Answer:

The answer is 3 because its a constant value and the rest are variables

1) (51 – 4 + 5n") + (3 + 3n" + 1")

A) 8n+ 3
B) 814 + 61 - 1
C) 87+ + 3 + 1
D) 81+ + 31 - 1

Answers

Answer:

tanong mo sa pagong

Step-by-step explanation:

tanong mo baka alam

The WSJ lists a bond as Acme 9s13 and the price as 89.875. If your required rate of return is 10%, would you buy one of these bonds in 2001?

Answers

Answer :

Yes

Explanation :

A bond in finance may be defined as an instrument of the indebtedness of a bond. It is a fixed income instrument that shows a loan by investors. Bonds may be in mutual funds or in private funding.

Here in the question it is given that WSJ is a company and it listed a bond on the market as Acme 9s13.

The price of the bond 89.875

The rate of return rate will be = 10%

So I will buy the bond of WSJ in the year 2001 as it will give a return of $ 931.00

What is an equation of the line that passes through the points (-6, -2) and
(6,8)?

Answers

Answer:

y=5/6x+b

Step-by-step explanation:

use formula (y2-y1)/(x2-x1) to look for the slope:

(8-(-2))/(6-(-6))

=10/12

=5/6 (simplified)

then, use the formula y=mx+b to get the equation by substituting m and x, y to either (-6, -2) or (6, 8):

8=5/6(6)+b

8=5+b

3=b (subtract 5 on both sides)

equation:

y=5/6x+3

The water was pumped out of a backyard pond. What is the domain of this
graph?

Answers

The domain of the graph is,

''All integers less than or equal to 6''.

Option C is true.

What is Domain of graph?

Domain of a graph consists of all the input values shown on the x - axis.

The graph of a function is shown in figure.

Now, The graph is defined on the value less than 6 on the x -axis.

And, The domain of a graph consists of all the input values shown on the x - axis.

Thus, The domain of the graph is,

''All integers less than or equal to 6''.

Learn more about the domain of graph visit:

https://brainly.com/question/12899754

#SPJ5

BIG IDEAS MATH
d 1: BTS > Chapter 5: Percents > Section Exercises 5.5 > Exercise 12
Write 34% as a fraction or mixed number in simplest form.
The simplest form is
Basic

Answers

Answer:

17/50.

Step-by-step explanation:

In order to write 34% as a fraction or mixed number in simplest form, the following calculation has to be done:

34% = 0.34 = 34/100

34/100 = 17/50

Thus, given that 17 is a prime number that cannot be divided by other number than 1 or 17, the simplest form to write 34% as a fraction is 17/50.

Complete these statements.
1. An algebraic expression with one or more terms is called a

Answers

Polynomial is the answer:)

. There are 14 boys and 9 girls in Mrs. Saldaña's math class. What is the ratio of students to teachers?
A 14/1
B 9:1
C 23:1
D 23 to 2​

Answers

Answer:

it would be c. 23:1 because there's 23 students in all and only one teacher

help. i’ll mark brainliest or whatever

Answers

Answer:

angle 1 is 140 degrees and angle 2 is 70 degrees

Step-by-step explanation:

it is two parallel lines with an intersecting line. This means that the two angles will be the same. Your welcome btw ur mom is hot

Answer:

Angle 1 is 140 degrees and Angle 2 is 70 degrees.

Ariel sold bags of gourmet popcorn for the school fundraiser. She sold 30 bags in two weeks, raising $112.50 for the school. How much did a bag of gourmet popcorn cost?​

Answers

Answer:

3.75 dollars

Step-by-step explanation:

If 30 bags of popcorn = 112.50

Then what would one bag equal?

First start off by putting money/bags

[tex]\frac{112.50}{30}[/tex]

Then solve.

112.50/30 = 3.75

Your answer is 3.75.

Hope this is correct, and hope it helps ^_^

Answer:

$3.75 per bag

Step-by-step explanation:

Put the total cost (112.50) and divide it by how many she sold (30) to get your answer. hope this helped

HELP ASAP I WILL MARK BRAINLIEST

Answers

Answer:

It's the first one...!!!

2/3 = 5/8 hope this helps!

Write the equation of a line parallel to the y-axis and passing through the point
(-3,-4).​

Answers

Answer:

x = -3 is the answer. Writing this cause brainly requires a 20 character answer.

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