simultaneous equations find x and y
2x/ y + y/ x =3
3x-y=2​

Answer:

D) 3x + y = -4

5x + y = -8

Step-by-step explanation:

Answer:

A = 6

B = 10

Step-by-step explanation:

[] Let's look at the system again:

[tex]\left \{ {{Ax+By=38} \atop {2Ax-By=16}} \right.[/tex]

[] They give us a set of x and y values, (3, 2) so we can plug them into the system.

[tex]\left \{ {{A(3)+B(2)=38} \atop {2A(3)-B(2)=16}} \right.[/tex]

[] Now, we can solve this with a graphing calculator. Let A be x and B be y for the sake of graphing.

A = x

B = y

[tex]\left \{ {{x(3)+y(2)=38} \atop {2x(3)-y(2)=16}} \right.[/tex]

-> See attached

[] We can see the lines intersect at (6, 10) so the answer is A = 6 and B = 10.

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

Hi there!

I will help you with joy!

Arabic numbers - 1, 2, ..., 10,..; Roman numerals: I, II, ... X, ..

Match the Arabic numerals to Roman numerals.

I = 1

V = 5

X= 10

L = 50

C=100

D=500

M = 1,000

Hope it helps!

Enjoy your day!

Ask me if you have any questions.

~Misty~

Answer:

Could you rephrase the question

Step-by-step explanation:

Answer:

vGreat job!

You earned

+5 pts

for helping

Step-by-step explanation:

Answer:

15.0721 quarts

Step-by-step explanation:

20 cups= 5.0721 quarts

10 quarts+5.0721=15.0721 quarts

if you need to convert the quarts just search 15.0721 quarts to whatever you need to convert it too.

hope this helps

Answer:

468mm^2

Step-by-step explanation:

1/2 x 8 x 27=108 triangle area

12 x 30 = 360 rectangle area

108+360=468mm^2

Answer:

x^2+6x+9

Step-by-step explanation:

(x+3)^2=

(x+3)(x+3)=

x^2+3x+3x+9=

x^2+6x+9

Let

10years ago

10years after

ATQ

[tex]\\ \tt\hookrightarrow 6x+20=2(x+20)[/tex]

[tex]\\ \tt\hookrightarrow 6x+20=2x+40[/tex]

[tex]\\ \tt\hookrightarrow 4x=20[/tex]

[tex]\\ \tt\hookrightarrow x=5[/tex]

▪︎If ten years ago , the age of daughter was x years , then , ten years ago the age of her father was 6x years ▪︎

Ten years after ,

According to the question,

▪︎6x + 20 = 2 ( x + 20 )

Therefore , Present age of the Father = 6x + 10 = 6 × 5 + 10 = 40 years and present age of the daughter,

hence , the age of his daughter is 15 years

Hope it helps ~

Answer:

11, 18, -7

Step-by-step explanation:

Sum: 2 + 9 = 11

Product: 2 x 9 = 18

Difference: 2 - 9 = -7

Answer:

5

Step-by-step explanation:

6x-4=26

6x = 26+4

6x= 30

x= 5

since it's per annum, we'll assume is compounded interest.

[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\pounds 3550\\ r=rate\to 3.05\%\to \frac{3.05}{100}\dotfill &0.0305\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{per annum, thus once} \end{array}\dotfill &1\\ t=years\dotfill &5 \end{cases} \\\\\\ A=3550\left(1+\frac{0.0305}{1}\right)^{1\cdot 5}\implies A=3550(1.0305)^5\implies A\approx 4125.42[/tex]

Answer: 12/81 or 15%

Step-by-step explanation:

If you want an explanation you can ask

Answer:

$18.25

Step-by-step explanation:

25x$0.25+20x$0.60= $18.25

Answer:

$6.6

Step-by-step explanation:

This is what we know:

You can say that they are proportional because there is a unit price for each pound.

There are a couple of ways to do this but I'll show you this one:

Ratio and proportion:

Step-by-step explanation:

https://brainly.com/question/2438420

answer is x= 6.6

Answer:

25 km

Explanation:

                                  Distance = speed * time

We have change time which are given in minutes to hour. As the speed is mentioned in kilometre per hour.

For part A:

[tex]\rightarrow Distance = speed * time[/tex]

[tex]\hookrightarrow Distance = 40 * \frac{15}{60}[/tex]

[tex]\hookrightarrow Distance = 10[/tex] km

For part B:

[tex]\rightarrow Distance = speed * time[/tex]

[tex]\hookrightarrow Distance =60 * \frac{15}{60}[/tex]

[tex]\hookrightarrow Distance = 15[/tex] km

Total distance covered:

part A + part B

10 km + 15 km

25 km

25 km

Speed of the car in first 15 mins ,

The car is moving in the speed of 40 km/h for 15 mins.

Speed of car in next 15 mins ,

again ,

now , total distance covered = ( 10 + 15 ) km = 25 km

Hope it helps~

Answer:

Step-by-step explanation:

Let the number of CD's = c

Let the number of tapes = t

Total  number of CD's and tapes = 9

c + t = 9   --------------- (i)

Cost of 'c' CD's = 7*c = 7c

Cost of 't' tapes = 6*t = 6t

Total cost = $ 68

7c + 6t = 58 -----------------(ii)

Multiply the first equation by (-6) and then add the equations.

(i)* (-6)       -6c - 6t = - 54

(ii)               7c + 6t =  58    {Now add. here t will be cancelled}

                   c         = 4

Number of CD's  = 4

Plugin c = 4 in equation (i)

4 + t = 9

     t = 9 - 4

     t = 5

Number of tapes = 5

b=+ac sqrt 3c

it's b=+ac sqrt 3c

Answer:

first was the tan4cot

second was (-g,f)

Answer:

A = 73°

Step-by-step explanation:

A + B = 180 because of alternating interior angles

Substitute each angle

6x - 35 + 3x + 53 = 180

9x + 18 = 180

9x = 162

x = 18

Substitute A

A = 6x - 35

A = 108 - 35

A = 73

Hope this helps

Have a great day!

Answer:

2,541 minutes

Step-by-step explanation:

i hope this helps

Answer:

$142.03

Step-by-step explanation:

15% Gratuity on the Bill=

$123.50 X 0.15 =$18.525

Add this to the bill cost to find the total cost.

$123.50+$18.525

=$142.03

Answer:

Step-by-step explanation:

W1: 25 X 3 = 75 ft

N1: 25 X 13 = 325 ft

E1: 25 X 7 = 175 ft

S1: 25 X 5 = 125

W2: 25 X 4 = 100

Add all sides up to get a total of 800

Answer:

44%

Step-by-step explanation:

100 + 20 = 120/100

(1.2)^2=1.44

144 - 100 = 44%

Answer:

Depth of the pond: 4494 m

Explanation:

Steps:

Answer:

the answer of the question will be F(7,9)

Hey there mate!

Please check the attached image of question for the answer with explanation.

Hope it helps ...