Mathematics High School

-4x-3y=5 3x-2y=-8 Solve by substitution

Answers

Answer 1

Answer:

look at the picture ..........

Answer 2

Answer:

y=1

x=-2

Step-by-step explanation:

Lets use substitution for the first equation:

-4x=5+3y

Divide by -4 on both sides : x=-5/4-3/4y

Now we substitute x into the second equation:

3(-5/4-3/4y)-2y=-8

Simplify : -15/4-9/4y-2y=-8

Combine Like Terms : -15/4-17/4y=-8

Isolate the Variable : -17/4y=-17/4

y=1

Now we get that x is -5/4-3/4, which is -8/4=-2

x=-2

Related Questions

Suppose that a department contains 7 men and 15 women. How many ways are there to form a committee with six members if it must have more women than men

Answers

Answer:

7502040

Step-by-step explanation:

you can have 6 women,5 women and 1 men,4 women and 2 men,

in first case,you can place women in 15*14*13*12*11*10 ways

in second case

15*14*13*12*11*7

and in third case

15*14*13*12*7*6

and you need to sum all this numbers

The product of 6 and the sum of a number and 3 is 60

Answers

Answer:

8(x+3) is the answer

Step-by-step explanation:

The equation is 6(x + 3) = 60. Then the solution of the equation is 3.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The product of 6 and the sum of a number and 3 is 60.

Let the number be 'x'. Then the equation is written as,

6(x + 3) = 60

Simplify the equation, then the value of the variable 'x' will be calculated as,

6(x + 3) = 60

x + 3 = 60 / 6

x + 3 = 10

x = 10 - 3

x = 3

The equation is 6(x + 3) = 60. Then the solution of the equation is 3.

More about the Algebra link is given below.

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Please help me fast I am in the middle of a test and I will give a brainleist.

Answers

Answer:

okay I believe it's A sorry If I'm wrong

Step-by-step explanation:

Answer:

St^{23}\sec \left(o\right)ndsago+5pts^6c-5b+18.2-2b+c+3

ep-by-step explanation:

WILL GIVE BRAINLISET
Find the equation of the straight line parallel to the y-axis and pass through the point (-2, 3). _____

Answers

X + 4 = 0

Explanation

The equation of a line parallel to y axis is

x = k where k is constant. …..(1)

It is given that the line parallel to y axis passes through the point (-4,-5).

Therefore (-4,-5) will satisfy equation (1)

Hence , -4 = k

Equation (1) becomes

x = -4

=> x + 4 = 0

Hope it helps.

What is the slope of the line that passes through the points (-4, -4)(−4,−4) and (-4, -9) ?(−4,−9)? Write your answer in simplest form.

Answers

Answer:

undefined slope

Step-by-step explanation:

The points contain the same x-value. This means that the line is vertical.

All vertical lines have an undefined slope.

Hope this helps.

Fresh Farms divides the farm into different
crops shown in the table below. What percent of the farm grows potatoes?
Potatoes 32Acres
Carrots 24Acres
Onions 40Acres

Answers

Answer:

Step-by-step explanation:

The length of a rectangle is three times its width.
The perimeter of the rectangle is 24 cm.
Calculate the area of the rectangle.

Answers

Answer:

A = 27 cm²

Step-by-step explanation:

let 'w' = width

let '3w' = length

P = 2l + 2w

24 = 2(3w) + 2w

24 = 6w + 2w

24 = 8w

w = 3

l = 3(3) or 0

A = lw

A = 3(9)

A = 27

please help and show work

Answers

Answer:

Just do scan and solve by brainly really helpful ngl

Step-by-step explanation:

A planee is flying at a speed of 250 miles per hour. How long does it take to fly 250 (show steps)

Answers

Answer:

Step-by-step explanation:

If the plane goes 250 per HOUR, then it will take that one hour to get to 250

Is this positive or negative? ( slopes ) y= -2/3 x - 1

Answers

Answer:

positive

Step-by-step explanation:

negative times negative is positive

positive times positive is positive

positive times negative is negative

negative times positive is negative

a) 60 square meters in square centimeters.

Answers

Answer:

600,000 cm²

Step-by-step explanation:

We know the conversion from meters to centimeters to be

1 m = 100 cm.

We need the conversion factor from square meters to square centimeters.

Start with

1 m = 100 cm

Square both sides.

(1 m)² = (100 cm)²

1 m² = 10,000 cm²

Now that we have the correct conversion factor from m² to cm², we can do the conversion of 60 m² into cm².

60 m² × (10,000 cm²)/(1 m²) = 600,000 cm²

10495 divide 530 x 48939 - 283 + 38920 =?

Answers

Answer:

1007721.54

Step-by-step explanation:

You first divide 10495 divide 530 which equals 19.8. Then you multply it by 48939 and get 969084.53. Then you add 38637 to 969084.53. Coulda just used a caculator.

27 x 9^3x can be written in the form 3^k where k is an expression in terms of x. Find k

Answers

Answer:

27 x 9^3x = 3^3 x 9^3x = 3^3 x (3^3)^3x = 3^3 x 3^9x = 3 ^3+9x

3^3+9x = 3k

ln(3^3+9x) = ln(3^k)

3+9x(ln3)=k(ln(3))

k= 3(1+3x)/ln(3)

Step-by-step explanation:

ln(x^n) = n(ln(x))

If the Diameter is ten then what is the area of it

Answers

Answer:

78.54

Step-by-step explanation:

Hope this helps!

please answer fast i need it

Answers

Answer:

AB = 2.625

Step-by-step explanation:

BC is an angle bisector and divides the opposite sides into segments that are proportional to the other 2 sides , that is

[tex]\frac{CA}{CD}[/tex] = [tex]\frac{AB}{BD}[/tex] , that ia

[tex]\frac{6}{10}[/tex] = [tex]\frac{AB}{7-AB}[/tex] ( cross- multiply )

10 AB = 6(7 - AB) ← distribute

10 AB = 42 - 6 AB ( add 6 AB to both sides )

16 AB = 42 ( divide both sides by 16 )

AB = 2.625

For A brainly please help me out

Answers

Answer: 2, 2

Brainly?

product of the polynomial 5x3 + 9x2 + 6x + 1 and the monomial x ?

Answers

Answer:

5x^4+9x^3+6x^2+x

Step-by-step explanation:

What is 5796÷25 show working

Answers

Answer:

231.84

Step-by-step explanation:

I don't know but use a calculator

Using the equation R(x) = x - 2,000 What would be the y value when x is 70,000?

72,000
68,000
74,000
50,000

Answers

Answer:

68k

Step-by-step explanation:

you replace x with 70,000 and subtract 2k then you have your answer :)

Dont forget to say thanks if this helped :)

Pls help me asap pls!!

Answers

Answer:

Option 3 : 19m, 34m, 15m

Step-by-step explanation:

First we must know this,

The length of the third side of a triangle must be less than than the sum of the lengths of any two sides of a triangle.

So, Now let us check one by one :

Option 1 : 5m, 6m, 8m

5 + 6 > 86 + 8 > 55 + 8 > 6

So, 5m, 6m, 8m can form a triangle .

Option 2 : 10m, 10, 2m

2 + 10 > 1010 + 10 > 210 + 2 > 10

So, 10m, 10m, 2m can form a triangle .

Option 3 : 19m, 34m, 15m

19 + 15 ≯ 34

So, 19m, 34m, 15m cannot form a triangle .

Option 4 : 3m, 16m, 14m

3 + 14 > 1616 + 14 > 316 + 3 > 14

So, 3m, 16m, 14m can form a triangle .

7.4{5[2 +16 ÷ (4× 2) − 3]− 4}− 24 =

Answers

You will end up with-15 because you add all the in side first so the 4x2 until get get out of all of them

Help me guys!

Fill in the table using this function rule.

y = -2x+3

Answers

Y=-2(-6)+3
Y=12+3
Y=15

Y=-2(-3)+3
Y=6+3
Y=9

Y=-2(0)+3
Y=0+3
Y=3

Y=-2(3)+3
Y=-6+3
Y=-3

Y=15
Y=9
Y=3
Y=-3

How many solutions does 8 + x/6 = x/6 - 4 + 5x/12 have?
A. Two solutions.
B. No solutions
C. Infinitely many solutions
D.One solution

Answers

Answer:

c. infinitely many solutions

1 is the additive identity of any real number True or False

Answers

Answer:

False

Step-by-step explanation:

It is False. 1 is the identity element for multiplication, because if you multiply any number by 1, the number doesn’t change. Identity elements are specific to each operation (addition, multiplication, etc.). So while 1 is the identity element for multiplication, it is NOT the identity element for addition.

Find the perimeter. Simplify your answer.

Answers

Answer:

P = 2w - 10

Step-by-step explanation:

To solve this problem use the perimeter formula [tex]P=2l+2w[/tex]

So here we have 1 as the width and w-6 as the length [tex]P=2(w-6) + 2(1)[/tex]

So we multiply 2(w) 2(-6) to get 2w-12

So because 2 times 1 is 2 the perimeter would be [tex]P=2w-12 + 2[/tex]

Simplified would be [tex]P=2w-10[/tex]

because -12 + 2 = 10

Hopes this helps

Solve for x
5x – 1 < 2
Give your answer as a fraction in its simplest form.

Pls help I’ve got no idea

Answers

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

Inequality Form:

Interval Notation:

(

−

∞

)

Step-by-step explanation:

[tex]5x - 1 < 2 \\ 5x < 3 \\ x < \frac{3}{5} \\ x < 0.6 \: x( - \infty . \frac{3}{5} )[/tex]

Which equation can be solved to find x, the measure of BD in the diagram
below?
C
53
AB
D
E
2330
O A. *- 53 = 233
B. }(233 + x) = 53
C. (233 - x) = 53
D. x+ 53 = 233
=

Answers

The value of x is equal to 127 degrees.

Data;

Outer angle = 233Inner angle = 53unknown angle = x

Angle tangent to a circle

To find the angle x which is related to angle 233 to form the outer angle 53, the equation

[tex]\frac{1}{2} (233 - x) = 53[/tex]

We can proceed to solve for x by simplifying the equation which will give us

[tex]\frac{1}{2}(233-x) = 53\\2 * 53 = 233 - x\\106 = 233 - x\\x = 233 - 106\\x = 127^0[/tex]

The value of x is equal to 127 degrees.

Learn more on tangential angle here;

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Answer:

Step-by-step explanation:

just took the quiz

PLEASE HELP ME 20 POINTS

Determine the x- and y-intercepts of the graph of X-4y=8

Answers

Answer:

x- intercept = 8 , y- intercept = - 2

Step-by-step explanation:

To find the x- intercept, let y = 0 in the equation and solve for x

x - 4(0) = 8

x - 0 = x

x = 8 ← x- intercept

To find the y- intercept, let x = 0 in the equation and solve for y

0 - 4y = 8

- 4y = 8 ( divide both sides by - 4 )

y = - 2 ← y- intercept

Nathan has a collection of 4,324 toy cars? Him and his friend Nashon divide the cars into rows on Nathan’s
driveway, and they end up with 46 rows. Each row has the same number of cars in it. How many cars are in each
row?

Answers

4324 / 46 = 94
94 cars

State of the two triangles are congruent. If they are, state how you know.
See picture for full problem. Please and thank you!

Answers

Answer:

in the quest the double angle sign means they are congruent as well as they have a common side if you label them.

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