Mathematics College

Solve the following system of equations.
6x -5y=13 & 9y-15+2x=0

Answers

Answer 1
Answer:

x = 3

y = 1

Step-by-step explanation:

Hi !

6x - 5y = 13

9y - 15 + 2x = 0

6x - 5y = 13

2x + 9y = 15 | ×(-3)

6x - 5y = 13

- 6x - 27y = - 45

add

6x - 6x - 5y - 27y = 13 - 45

- 32y = - 32 | ×(-)

32y = 32

y = 1

replace y = 1

6x - 5(1) = 13

6x - 5 = 13

6x = 13 + 5

6x = 18

x = 3

Good luck !

Related Questions

At its highest​ point, the elevation of a county is feet above sea level. At its lowest​ point, the elevation of the county is feet below sea level. Answer parts a through c.

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Answer: There is no photo, I cannot see

4 less than a number n is −15.


Answers

Answer:

n-4= -15

Step-by-step explanation:

"4 less than a number n" is represented by n-4.

it says it "is" -15, so this equals -15.

n-4= -15

PLEASE HELP ME IM BEING TIMEDD

Answers

Answer: There are 7 possible arrangments

Step-by-step explanation:

If you try to break down 150 you'll find that  you'll be able to divide/ multiply it by 10,15,2,3,12,5,50

Simplify y + (15 + y)

Answers

Answer:

2y + 15

I hope this helps!

Remove the parenthesis:

y+15+y

Group like terms:

y+y+15

Add similar elements:

2y+15

A mug of coffee cools down
1/2
of a degree in
1/5
of an hour. At what rate is the coffee cooling?

I need it now pleaseeee

Answers

Answer:

2 1/2

ggez

Step-by-step explanation:

Help! Please. I don’t know what to do. I got this wrong.

Answers

Answer: 2/5 40%

Step-by-step explanation:

Juice A cost 0.10 cent more per ounce than juice B. 12 ounce juice A cost $5.64 total. How much per ounce juice B cost

Answers

Answer:

5.64/12= .47 but that box cost 10cents more than box B so you then you subtract .10 and get .37 per ounce for box B

Can someone please help me, ty!! (Will mark brainliest)

Answers

the third one is the correct answe

What is the mean of 5, -15, 7, -13, 1

Answers

Answer:

-3

Step-by-step explanation:

Add them all up and then divide by 5

The answer is -3 add them all up and divide them by five

-4 1/2-(-2 2/3) step by step pls help if someone dosen`t answer i might fail pls if you do i will cashapp you 100 bucks just leave your cashapp in the answer

Answers

Answer:

you can use a calculator ( keep your money )

Step-by-step explanation:

15/4 divided by -5/8

Answers

Answer:

-6

Step-by-step explanation:

Answer:

-6/1 or just -6

Step-by-step explanation:

15/4 ÷ (-5/8) is -6/1 .

Find the reciprocal of the divisor

Reciprocal of (-5/8) : (-8/5)

Now, multiply it with the dividend

So, 15/4 ÷ (-5/8) = 15/4 × (-8/5)

= 15 × (-8)  = -120

   4 × (-5)   =  -20

After reducing the fraction, the answer is -6/1 or just -6.


Which point is inside of the triangle?
hurry and answer.

Answers

Answer:

the answer is C. ............

Add 1 to half of h.How to write in algebraic expression?​

Answers

The expression would be
1/2h + 1

What is the greatest integer? [In picture]

Answers

25 because -50 is negative

Write the ratio as a unit rate. Simplify. 216 diving student and 12 instructor

Answers

Answer:

Ratio students to classroom in school A equals 216:12 which simplifies to 18:1. Ratio students to classroom in school B equals 104:4 which simplifies to 26:1.Total students combining school A and B equals 216+104=320 and Total classroom 12+4=16, if both school combined are assumed to be a single school C, than ratio of of students to the classroom in school C equals 320:16 which simplifies to 20:1 which means 20 students in every classroom, now total students in 4 classroom of School C equals 20x4=80, these 4 classroom are separated as School B and other 12 classroom School A, now ratio still 20:1 (same in both schools). initially students in School B were 104 and now are 80, then total students transferred equals 104-80= 24.

На сколько процентов уменьшится объем прямоугольного параллелепипеда, если его длину уменьшить на 25%, а ширину и высоту на 20%?

Answers

Answer:

I dunno what your saying.

Step-by-step explanation:

Please us English

Which table of ordered pairs represents a proportional relationship?

Answers

Answer:

C

Step-by-step explanation:

The points in C, when graphed, have a positive slope as well as going up or down by the same amount each time

-3-2=-5-2=-7

5-2=3-2=1

44 plus 48 distributive property

Answers

Answer:

92

Step-by-step explanation:

44 plus 48 can be rewritten as:

4(11 + 12), which, in turn, simplifies to:

4(23), or 92

Next time, please include all of the instructions.  Thank you.

The point is on the x acis and 12 units to the left of y axis

Answers

Answer:

(-12, 0)

Step-by-step explanation:

They are asking for the coordinates of the given point on the plane.

Therefore, since the point is on the x axis, we know that its y-coordinate must be zero. y = 0

Now, since it is 12 units to the left of the y axis, then its x coordinate is -12

x = -12

Therefore, the point in plane coordinates is written as: (-12, 0)

You have 1240 acres of land, and each acre is worth $52. How much is your land worth in total?

Answers

If one acre is $52, you would multiply 1240 by 52. Your land in total is worth $64,480.

Answer:

$64,480.

Step-by-step explanation:

In a diamond problem solver what is 3.25 and 4 I need help ASAP

Answers

Answer:12 I believe

Step-by-step explanation:

What multiplication expression is equivalent to 2/3÷1/2

Answers

2/3 x 2/1 or you can just write 2/3 x 2

Every chord is NOT diameter. But every diameter is a chord.” Do you agree or disagree with the statement? Justify.

Answers

Answer:

Yes

Step-by-step explanation:

The chord is a diameter only if it passes through the center of the circle. And a diameter is a chord because it goes from on point on the circle to another in a straight line.

If a+b>a−b, which of the following must be true?
(A) a>b
(B) a=b
(C) a 0
(E) b > 0

Answers

Hi

a+b > a-b

<=> a+b-a = b > a-b-a=-b ** subtract a **

<=> b+b > 0 ** add b **

<=> 2b > 0 ** divide by 2 **

<=> b > 0

so (E) is the right answer

Thanks

Points A(−1.5) and B(6) are marked on a number line. Find the coordinate of point M if it is known that AM:MB=1:2. Find all possible answers.

Answers

Answer:

M(1)

Step-by-step explanation:

(Please see the attached picture to better visualize the number line)

What we know:

- Point A is at -1.5 on the number line

- Point B is at 6 on the number line

- AM:MB=1:2

From the ratio, we automatically know that point M is in between point A and point B on the number line. In other words, point M is greater than -1.5 but less than 6. (-1.5<m<6). We also learn from the ratio that if the distance between point A and point B is divided into thirds, AM would take up one of those thirds and MB would take up two of those thirds.

1. Find the distance between point A(-1.5) and point B(6)

6-(-1.5)

= 6+1.5

= 7.5

2. Divide this distance into thirds

7.5/3

= 2.5

Now, we know that one third of the distance between AM and BM is 2.5.

3. Add 2.5 to point A(-1.5) to find point M (please refer to the picture attached)

-1.5+2.5

= 1

I hope this helps! Please comment if you have any questions.

Write the expanded form of the expression.
y(0.75+4)​

Answers

Answer:

25

Step-by-step explanation:

Answer:4.75y

Step-by-step explanation:

3. What is the value of 42 – 2(3 • 5+ 1)?

Answers

Answer:

10

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Multiply the numbers

42−2(15+1)

Add the numbers

42−2(16)

Multiply the numbers

42−32

Subtract the numbers

10

Is 6.35 greater than 6.7

Answers

Answer:

NO

Step-by-step explanation:

always look at the number after point

Answer:

No

Step-by-step explanation:

Double click in the red boxes to fill in your answers!
Domain:
Range:
Local Relative Min:
Local Relative Max
Global Absolute Min:
GlobalAbsolute Max
Increasing intervals:
Decreasing Intervals:
x-intercepts:
y-intercepts:
End Behavior
LEFT: NONE
RIGHT: X - Y -

Answers

Answer:

More information or the graph your talking about is needed to answer this

Step-by-step explanation:

3+(-h)+(-4)where h = -7.

Answers

Answer:

6

Step-by-step explanation:

3+(-h)+(-4)

Let h = -7

3+(- -7)+(-4)

3+(7)+(-4)

10 -4

6

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