2x + 5y = 6
2x = 10 – 3y

Solve the simultaneous equations by substitution

(Sorry all my questions are maths i suck, more to come)

Answers

Answer 1

Step-by-step explanation:

Given equations

2x + 5y = 6 .......i)

2x = 10 - 3y...... II)

Putting 2x = 10 - 3y in equation i

10 - 3y + 5y = 6

2y = 6 - 10

2y = - 4

y = - 4 / 2

y = - 2

Now putting y = - 2 in equation ii

2x = 10 - 3 * ( - 2)

2x = 10 + 6

2x = 16

x = 16 / 2

x = 8

So x = 8 and y = - 2

Hope it will help :)❤


Related Questions

help quick plz i need help plzzzzzzzzzzzzzzzzzzz

Answers

Answer:

2. 18  3. 220  4. 11  5. 9  6. 18

Step-by-step explanation:

I think is 18 not chere

Which best describes why these two figures are similar or not similar?

Answers

They are not similar because their corresponding angles are not congruent

Answer:

first one top left

Step-by-step explanation:

Helpppppppppppppppppppppp Nowwwwwwww plzzzzzzzzzzzzz

Answers

Answer:

143°

Step-by-step explanation:

=90°+53°

=143°

Answer: x=217

Step-by-step explanation:

Use the same equation. Angles around a point sum to 360.

53+44+46+x=360. Combine like terms.

143+x = 360. Subtract 143 from both sides.

x= 217

Can somebody help me find the volume

Answers

Answer:

35.8591

Step-by-step explanation:

Someone help and plz make sure the answer is correct plz :)

Answers

Answer:

slope = 1

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (16, 17) and (x₂, y₂ ) = (15, 16)

m = [tex]\frac{16-17}{15-16}[/tex] = [tex]\frac{-1}{-1}[/tex] = 1

What is the slope of a line parallel to the line whose equation is 4x+5y=-35
Fully simplify your answer.

Answers

y = -4/5x - 7

Hope this helps give me feedback if im wrong

Perform the indicated operation and state the domain. Let f(x) = 3x^1/3 and g(x) = 2x^1/2 Express as (f+g)(x)

Answers

Answer:

[tex](f + g)(x) = 3x^{\frac{1}{3}}+2x^{\frac{1}{2}}[/tex]

[tex]x \ge 0[/tex]

Step-by-step explanation:

Given

[tex]f(x) = 3x^{\frac{1}{3}}[/tex]

[tex]g(x) = 2x^{\frac{1}{2}}[/tex]

Solving (a): (f + g)(x)

In functions:

[tex](f + g)(x) = f(x) + g(x)[/tex]

So, we have:

[tex](f + g)(x) = 3x^{\frac{1}{3}}+2x^{\frac{1}{2}}[/tex]

Solving (b): The domain of f(x)

For (f + g)(x) to be defines, the value of x must be greater than or equal to 0.

Hence, the domain is:

[tex]x \ge 0[/tex]

How many triangles do you see?

Answers

Answer:

bajjaoasawwwssahwiwoa

16??

Use the Graph that shows the solution to f(x) = g(x),
f(x) = 1+2x/x
g(x) = 2+x

choose each correct `answer
x=-2
x=-1
x=1
x=2

Answers

Answer: it’s -1 and 1

Step-by-step explanation:

I took the test. Ur welcome btw

How do i make a scaled drawing? Pls help i will give you brainliest

Answers

Answer:

draw a even shape , symbol

Step-by-step explanation:

examples- a 5x5 square , a regtangler room that is 10/1/2 feet by 8 feet.

Answer:

draw the shape or composite shape

You can use graph paper to help you make scale drawings.

PLZPLZPLZPLZPLZPLZPLZPLZPLZPLZPLZPLZPLZPLZPLZPLZPLZPLZPLZPLZ!!!!!

Answers

Answer: 410526 books

Step-by-step explanation:

Let x equal the total number sold.

x × 0.076 = 31,200

x = 410526 books

50-(14+12+2(5+2(2)+3)

Answers

Answer:

0

Step-by-step explanation:

50-(14+12+2 (5+2 (2)+3)

50-(28 (7 (2)+3)

50-(28 (14+3)

50-(28×17)

50-476

426

What is 2 - -3.......

Answers

Step-by-step explanation:

2 - ( - 3)

= 2 + 3

= 5

Hope it helps

Answer:

5

Step-by-step explanation:

2 - ( - 3)  = 2 + 3  = 5

Find an equation of the line passing through the pair of points. Write the equation in slope-intercept form.
(4,8), and (8,4)

Answers

Step-by-step explanation:

4-8 / 8-4 = -1 slope

y - 8 = -1(x - 4)

y = -x +12

4-8 / 8-4 = -1 slope
y - 8 = -1(x - 4)
y = -x +12

Solve the equation.
y-26 = 98
y-26 + = 98 +26
=
y - 26 = 98
y - 26+ = 98 + 26
y =
(Type whole numbers.)

Pls help ASAP

Answers

Answer:

y=124

Step-by-step explanation:

y=98+26

y=124.

I hope this will help

Help me get the answer, I'm so confused, Find C

Answers

Answer:

60

Step-by-step explanation:

Answer:

c=13

Step-by-step explanation:

a^2+b^2=c^2

Match each scenario with the tax it is describing by putting the correct number next t

the proper tax.

1) Yvonne buys gloves that cost $10.00. At the register, she must pay

$10.80.

TARIFF

2)Sasha bought a house last year. She just got a tax bill from the

county showing the value of her house and the amount of tax she

PROPERTY

TAX

Owes

3)Bigmart sells boots made in China and boots made in the U.S.

Bigmart must pay 27% tax on each pair of boots made in China, but

not on the U.S. made boots.

ESTATE

TAX

4)State citizens voted to add a 75-cent tax to each pack of cigarettes

to pay for programs to help people quit smoking.

Income/Social

Security/Medicare

Taxes

5)Jake got his paycheck today. He worked 40 hours at $20 per hour

His gross pay was $800, but the amount of his paycheck was only

EXCISE

TAX

Conc

I’m

Answers

Answer:

1) Yvonne buys gloves that cost $10.00. At the register, she must pay  $10.80. ⇒ EXCISE TAX  

2)Sasha bought a house last year. She just got a tax bill from the  county showing the value of her house and the amount of tax. ⇒ PROPERTY  TAX  

3) Bigmart sells boots made in China and boots made in the U.S.  Bigmart must pay 27% tax on each pair of boots made in China, but  not on the U.S. made boots. ⇒ TARRIFF.  

4)State citizens voted to add a 75-cent tax to each pack of cigarettes  to pay for programs to help people quit smoking. ⇒ SALES TAX  

5)Jake got his paycheck today. He worked 40 hours at $20 per hour  His gross pay was $800, but the amount of his paycheck was only. ⇒ Income/Social /Security/Medicare  Taxes

Answer:

1. Excise tax

2. Property tax

3. Tariff

4. Sales tax

5. Income/Social /Security/Medicare Taxes

Step-by-step explanation:

15 is the geometric mean between 25 and what other number?

Answers

25 and 5
to get the mean u add the numbers together and divide by the amount of numbers in the sequence
so 25 + 5 is 30
30 divide by 2 is 15

Please help me. Show your work.
Find the value of x in the figure.

Answers

Answer:

x = 17

Step-by-step explanation:

2x + 6x + 15 + x + 12 = 180 (angle sum of triangle is equal to 180)

9x = 153

x = 17

Solve the problem in the photo.

Answers

Answer:

A, B, C, D, and F

Step-by-step explanation:

Replace x with the number options (remember to multiply the options by a negative one since x is negative).

3*-1=-3 -3 is greater than or equal to -4

-3*-1=3 3 is greater than or equal to -4

4*-1=-4 -4 is greater than or equal to -4

-4*-1=4 4 is greater than or equal to -4

4.001*-1=-4.001 -4.001 is not greater than or equal to -4, so this does not work

-4.001*-1=4.001 4.001 is greater than or equal to -4

Hope this helps!


Someone plz help me giving brainliest

Answers

Answer:

94 is next answer of this pattern

Let x = 6. What is the value of the expression 5x2+x−7? Enter your answer in the box.

Answers

179 is the value of the expression

Step-by-step explanation:

I did math

What is the answer for
a-3=9

Answers

a=12
Because 12-3=9
___________

Hi can someone help me on this question? Please:)!

Answers

Answer:

the number of rotations is dependent on the number of minutes

Step-by-step explanation:

as time passes the number of rotations increases if time did not pass at all then the number of rotations would not increase or decrease at all

please help 5x^2+21x+4

Answers

Answer:

(5x+1) (x+4)

Step-by-step explanation:

I think it’s (x+4)*(5x+1)

Write 21x as a sum ~ 20x + x

5x^2+20x+x+4

Then you factor out the 5x from the expression

5x * (x+4) + x+4

Then you factor out x+4 from the expression

(X+4) * (5x+1)

Then that’s your answer :) have a great day

Sylvia and her sister are both reading books. Sylvia reads 2 pages every 5 minutes. Her sister reads 3 pages every 6 minutes. What is the difference between Sylvia and her sisters reading rates, in pages per hour? A B. 8 C 24 30​

Answers

Answer:

6

Step-by-step explanation:

Silvia: 2 pages to 5 minutes

      into...

Silvia: 1 page to __ minutes

Find Unit Rate : 5/2= 2.5

Unit Rate for Silvia is  2.5

Written out : 2 pages x 2.5 = 5 minutes

Example : 1 page to 2.5  minutes

What we found : ___ pages to 60 minutes(60 divided by 2.5) is  

24 pages to 60 minutes

Silvia's sister: 3 pages to 6 minutes

     into...

Silvia's sister: 1 pages to ___ minutes

Find Unit Rate : 6/3= 2

Unit Rate for Silvia is  2

Written out : 3 pages x 2 = 6 minutes

Example : 1 page to 2  minute

What we found : ___ pages to 60 minutes(60 divide by 2) is

30 pages to 60 minutes  

Final Step : 30 - 24 = 6

i need help please asap its due

Answers

Answer:

D.) $4 per min.

Step-by-step explanation:

in the first increase we go up 5 minutes and up $20

this trend stays equal just with 10 minute and $40 increases

this means that there is $20 for every 5 minutes so to find the unit rate we divide $20 by 5 which gives us 4

hope this helps chu babe <3

How can you tell that 3.590 and 3.59 are equivalent​ decimals?

Answers

You can take the zero out of the 3.590 since it doesn’t have to be their

Answer:

That video should help you a lot...

Step-by-step explanation:

https://youtu.be/u2L0qWVePfc

11 Points 11 Points NEED HELP PLEASE

Answers

Answer: a

Step-by-step explanation:

So XY is a quarter of the circumference, that means the other part is 3/4

circumference is 2pir which is 20pi

20pi x 3/4 = 15 pi m

Answer:

The answer is 30πm.

Hope it helps uh.

Thanks

What is the 60th term 3, 7, 11, 15

Answers

Answer:

243

Step-by-step explanation:

Since this equation starts with 3 and increases by 4 every term we can construct an equation

y = difference * x + initial term

Our initial term is 3 and our difference is 4

y = 4x + 3

Now, we can input 60 for x

60 * 4 + 3 = 240 + 3 = 243

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