Mathematics High School

2x+y=3
x+y=4
metodo grafico​ urgente para hoy

Answers

Answer 1

Answer:

Step-by-step explanation:

Given

X+Y=4 -i

2X+Y=3 -ii

solving 1

X=4-Y -iii

equating eq iii and eq ii

2(4-y)+y=3

8-2y+y=3

-1y=3-8

-1y=-5

y=5

equating value of y in eq iii

x=4-y

x=4-5=-1

Related Questions

how to do please help

Answers

Answer:

715.5

Step-by-step explanation:

The formula is A=1/2 b*h

so, b*h = 53*27 = 1431

Divide by 2 and the answer is 715.5

Hope this helps :)

X=4 is a no solution

Answers

Actually I think it is a solution

Step-by-step explanation:

x=4
x-4=0
Implicit form

I do not get it someone pls teach me how to do it

Answers

Answer:

so the smallest side would be associated with the smallest angle, and the angle is directly across from the side. To write from smallest to largest angle would be:

angle V because it's across from the smallest side

angle S because it's across the second smallest side

angle T because it's across the largest side

One shelf in the New York Public library can hold 63 books. The New York Public library has 69 books. Enter the number of shelfs needed to store all of the books away.

Answers

2 shelves, with a dissapointingly large ammount of empty space on the second one

What is AC? Brainiest for answer

Answers

Answer:

air conditioning

also, "all clear" on a calculator

Step-by-step explanation:

is this suppose to be a math question HAHAHA if not then it should stand for air-conditioner I think


Enter the number that belongs in the green box,
Please helppp

Answers

It’s 2. All the sides are congruent

What is the slope of the line that passes through the points (10,5) and (15,20)

Answers

Answer:

slope=3

Step-by-step explanation:

what are the x and y intercepts of the graph? pic above :)

Answers

Answer:

x=  ( -1 , -3 )

y= ( 0 , -1 )

Step-by-step explanation:

How much money will there be in an account at end of 10 years if $3000 is deosited at 6% annual interest interest comounded as follows:

Answers

Answer:

●3000000000000000000000000●

Step-by-step explanation:

●

A cylindrical juice glass is 8 centimeters tall and has a radius of 3 centimeters. If the glass is full, which of the following is closest to the volume of the filled portion? A) 28 cm C) 170 cm B) 226 cm D) 98 cm PLEASE HELP!​

Answers

Answer:

226

Step-by-step explanation:

You first have to find the volume of the cylinder, which you would do 3 squared, which is 9, times 8, which is 72, and then times pi, which gives you 226.1946711. Since they want the closest volume to that number, it would just be 226. If you are confused on the equation, the equation for the volume of a cylinder looks like this:  [tex]V=\pi(r^{2})(h) \\[/tex], where r is the radius and h is the height.

[tex]1\frac{5}{8}[/tex] as a decimal

Answers

The answer is 1.625 by the way

Solve and reduce to lowest terms:
5x2/7

Answers

Answer:

10/7

Step-by-step explanation:

5*2/7=10/7

Answer:

10/7 or 1 3/7

The ratio of men and women at a class is 6 to 5. how many women are their if their are 3600 men?

Answers

Answer:

3,000

Step-by-step explanation:

6:5

1.2( divided 6 by 5):1 (Divide 5 by 5)

3600 divided by 1.2

3,000

Pls help me plssssssss

Answers

Answer:

Step-by-step explanation:

Volume of the cylinder

Givens

h = 30-10 = 20

d = 20

r = d/2 = 20/2 = 10

Formula

V = pi r^2 h

Solution

V = 3.14 * 10^2 * 20

V = 6280

Volume of the cone

Givens

h = 10

d = 20

r = d/2 = 20 / 2 = 10

Formula

V = 1/3 pi r^2 h

V = 1/3 * 3.14 * 10^2 * 10

V = 1046

Total Volume

V_cone + V cylinder

V = 1046 + 6280

V = 7326.7

The ratio of 49 cm to 35 cm is
please ill give brainly

Answers

Answer:

If you want to simply it, the answe is 7 cm to 5 cm

Step-by-step explanation:

Find a GCF which is 7 in this case, and divide both numbers by the GCF

7:5

you have to divide each by the common divisor

help me ya'll so i can go to bed! (slopes) (brainliest)

Answers

Answer:

i dont know

what you wanna know

Step-by-step explanation:

Identify the coordinates (x₁,y₁) and (x₂,y₂). We will use the formula to calculate the slope of the line passing through the points (3,8) and (-2, 10).

Input the values into the formula. ...

Subtract the values in parentheses to get 2/ (-5).

Simplify the fraction to get the slope of -2/5.

Go to sleep this is a lullaby slopes slopes slopes over here over there slopes everywhere.

thx for points

Help Please! I will mark brainliest!

Answers

Answer:

17

Step-by-step explanation:

4 × 3² = 36

2 × 7 = 14

36 ÷ 12 = 3

3 ± 14 = 17

please help!! i need this asap

Answers

I would help but I cannot read it.

Calculate the quotient of
0.0527 and 0.85.

Answers

Answer:

0.062

Step-by-step explanation:

0.0527 ÷ 0.85 = 0.062

Answer:

0.062

Step-by-step explanation:

0.0527 ÷ 0.85=0.062

(hope this helps can i plz have brainlist :D hehe)


Find the measure of b.
63°

Answers

Answer: 27

Step-by-step explanation: That is a 90 degree angle

90-63 is 27

27

since it’s a right angle it equals 90 degrees overall, so 90-63= 27

Joyce is running a half-marathon, which is 13.1 miles long.



Question 1
Part A

Write an equation that shows the number of miles y she has left after running x miles.
Part B

If Joyce has already run 9.7 miles, how many miles does she have left?

Enter the correct answer in the box.

Answers

y = 13.1 - x

y = 13-1 - 9.7
y = 3.4

Write the equation of the line graphed below

Answers

Answer:

y = 5/8x + 12

Step-by-step explanation:

Slope = change in y/change in x

slope = 5/8

Using y = mx + b find b.

y = 5/8x + b

-2 = 5/8(-4) + b

b = 1/2

y = 5/8x + 12

good luck, i hope this helps :)

y= 5/8x + 12
lolololololololol

Mary invests £1200 in a savings account. The account pays 1.5% compound interest per year. Work out the value of her investment after 2 years.

Answers

Answer:

CI=P[(1+r/100)^n-1]

=1200[(1+1.5/100)^2-1]

=1200*0.030225

=36.27

The graphs below have the same shape. What is the equation of the red
graph?

Answers

I think it’s D? If not then probably b

what is the simplest form of 60 : 120?​

Answers

Answer:

1 : 2

Step-by-step explanation:

60 is 60 x 1, and 120 is 60 x 2

60x2=120 hence the ratio is 1:2

A ruler costs pence.
A pen costs 10 pence more than the ruler.
Write an expression, in terms of , for the total
cost of 3 pens and 2 rulers.

Answers

Answer:

2x+3(10+x)

Step-by-step explanation:

I'm not sure but I think this might be the answer

Convert to slope intercept form

12x + 5y =20

Answers

Step-by-step explanation:

Answer:

y = -2.4x + 4

Step-by-step explanation:

12x + 5y  = 20

5y = -12x + 20

Divide everything by 5

y = -2.4x + 4

Gabby has $1,506 in a savings account that pays 2.5% simple interest. How much interest will she earn in 3 years?

Answers

Answer:

$112.95

Step-by-step explanation:

Use the simple interest formula, I = prt

Plug in the initial amount, interest rate, and number of years

I = prt

I = (1506)(0.025)(3)

I = 112.95

So, the interest created in 3 years is $112.95

I = PRT ; P=$1506 , R=2.5% , T=3 years

I = (1506)(.025)(3)
I = 37.65 (3)
I = $112.95

HELP. Pleaseee. I have no idea what this means.

Answers

Answer:

2

Step-by-step explanation:

roots are the intercepts at the x axis I believe

6c+31=4c+13 this question is equation formulae and inequalities

Answers

Answer:

Step-by-step explanation:

6c+31=4c+13

6c - 4c = 13 - 31

2c = -18

c = -9.

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