pls answer asap!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer:

x = 2 and y = 2

Step-by-step explanation:

The given system of equations are :

12x+8y = 40 ...(1)

4x+5y = 18  ....(2)

Multiply equation (2) by 3.

12x+15y = 54 ...(3)

Subtract equation (1) by (3).

12x+15y-(12x+8y) = 54-40

12x+15y-12x-8y = 14

7y = 14

y = 2

Put the value of y in equation (2).

4x+5(2) = 18

4x+10 = 18

4x = 8

x = 2

The solutions of the given equations are x = 2 and y = 2

Answer:

I think f(1) = is 14,000

Step-by-step explanation:

f(1) = 14,000 should be right but thats about all I know. Sorry.

Answer:

x= 16    y= -4

Step-by-step explanation:

So for the x intercept we get positive 16, or (16,0). And then for the y intercept we get negative 4, or (0,-4). Have a great day!! :)

Answer:

2000 metros hola y de su comadre

Answer: the volume would be 384 but if you want it separately it would 8*4= 32

8*12=96

4*12=48

but the total cost would be 176 after you add up the equations

and the surface area would be 352

hope this helped :D

Answer: It is 384 is for volume and  352 for surface area

Step-by-step explanation: 384 square inches for volume because you multiply all the numbers together.  V = LWH (volume=lengh+with+hight)

352 for surface area.

V = (8) x (4) x (12)

V = 384 inches squared

SA = 2(LH)+2(LW)+2(WH)

SA = 2(8x12) + 2(8x4) + 2(4x12)

SA = 192 + 64 + 96

SA = 348 inches squared

I hope this helps! =3

Answer:

they are parallel (will never intersect)

Step-by-step explanation:

Answer:

a. S = {A,B,AB,O}

b. P(A) = 0.41, P(B) = 0.1, P(AB) = 0.04, P(O) = 0.45

c. 0.45 = 45% probability that the person chosen at random has either type A or type AB blood

Step-by-step explanation:

a List the sample space for this experiment.

All possible blood types(A, B, AB or O). So

S = {A,B,AB,O}

b Make use of the information given above to assign probabilities to each of the simple events.

The proportions of blood phenotypes, A, B, AB, and O, in the population of all Caucasians in the United States are approximately .41, .10, .04, and .45, respectively.

So

P(A) = 0.41, P(B) = 0.1, P(AB) = 0.04, P(O) = 0.45

c What is the probability that the person chosen at random has either type A or type AB blood

P(A) + P(AB) = 0.41 + 0.04 = 0.45

0.45 = 45% probability that the person chosen at random has either type A or type AB blood

Step-by-step explanation:

Use formula

[tex] (\frac{b}{2} ) {}^{2} [/tex]

To add a third new term and factor to find the answer. Example

[tex]x {}^{2} + 6x = 18[/tex]

[tex]( \frac{6}{2} ) {}^{2} [/tex]

Which equal 9. so our equation look like

[tex] {x}^{2} + 6x + 9 = 18 + 9[/tex]

The only number that multiply to 9 and add up to 6 is 3. So we write our equation like this.

[tex](x + 3) {}^{2} = 27[/tex]

Take the sqr root of both sides

[tex]x + 3 = \sqrt{27} [/tex]

Subtract 3 from both sides

[tex]x = \sqrt{27} - 3[/tex]

Since a sqr root of a number can be positive or negative, the answer is

[tex] \sqrt{27} - 3[/tex]

or

[tex] - ( \sqrt{27} ) - 3[/tex]

Answer:

Make sure you are using a perfect circle. This method won't work with ellipses, ovals or anything but a real circle. A circle is defined as all the points on a plane that are an equal distance from a single center point. The lids of jars are good household objects to use for this exercise.You should be able to calculate pi roughly because in order to get exact results of pi, you will need to ...

Measure the circumference of a circle as accurately as you can. The circumference is the length that goes around the entire edge of the circle. Since the circumference is round, it can be difficult to measure (that's why pi is so important). Lay a string over the circle as closely as you can. Mark the string off where it circles back around, and then measure the string length with a ruler.

Measure the diameter of the circle. The diameter runs from one side of the circle to the other through the circle's center point.

Use the formula. The circumference of a circle is found with the formula C= π*d = 2*π*r. Thus pi equals a circle's circumference divided by its diameter. Plug your numbers into a calculator: the result should be roughly 3.14.[3] X Research source

Repeat this process with several different circles, and then average the results.

Step-by-step explanation:

Answer:

To find the area of a circle the equation is pir^2

To find the circumference of a circle it is 2pir

The pictures show you visually what they look like

r=radius

If this answer helped you then please consider making this brainliest and thank this response :)

Answer:3x+5

Step-by-step explanation:

1) Combine like terms 2x+5+x

solution: 3x+5

[tex] \huge \blue{\tt{Answer:}} [/tex]

[tex] \sf{2x+3x+5x=180°[angle~sum~property~of~a~triangle]} [/tex]

[tex] \implies \sf{10x=180°} \\\\ \implies \sf{x = {\dfrac{180°}{10}}} \\\\ \implies \sf{x=18°} [/tex]

[tex] \sf{2x= 36°} \\\\ \sf{3x=54°} \\\\ \sf{5x=90°} [/tex]

Answer:

24 + c

Step-by-step explanation:

The questions is basically saying make x isolated.

First add 3 to both sides.

y+3=2x-3+3

y+3=2x

Now divide both sides by 2

(y+3)/2=x

x=(y+3)/2

Done!

Any questions just ask me in the comments.

Answer:

I don't exactly know this but

Step-by-step explanation:

remeber that descend is subtraction. under

Answer:

A   20°

Step-by-step explanation:

Explanation:-

Given graph

The corresponding angles are congruent (equal to each other)

(x+60)° = 4 x°

x + 60 = 4x

4x-x = 60

3x =60

x = 20°

The value of x=20°

Answer:

9

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

27÷3=9

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

Answer:

3 skiers will be on the last chair

Step-by-step explanation:

Divide 609 skiers by 6 people per chair:

609 ÷ 6 = 101.5 (also can write as 101 and remainder of 3)

Multiply 101 • 6 = 606

609 - 606 = 3

Answer:

the answer is 42

Step-by-step explanation:

Answer:

YESSSS ikr like every minute it say UpGrAdE uR bRaInLy and its just ike I ALREADY DIDDDDDD it is VERYYY anouing

Step-by-step explanation:

Answer:

68

125 percent (calculated percentage %) of what number equals 85? Answer: 68.

Answer:

68

Step-by-step explanation:

First, let us assign a variable x, for the (blank) in the problem.

Next, converting the question into a math equation, we get:

125% * x = 85.

Solving for x, we get:

1.25x = 85

x = 68.

Answer:

sfsdfsfgsg

Step-by-step explanation: