I need help finding why these triangles are congruent

Answer:

96

Step-by-step explanation:

120/30=4

4x30=120

4x24=96

96 is your answer

Answer:

Step-by-step explanation:

x + 3y = 15   ×4

4x + 2y = 30   ×1

4x + 12y = 60

 -       -       -

4x + 2y = 30

      10y = 30

y = 30/10

y = 3

To solve for x, substitute y = 3 into any of the equations

x + 3(3) = 15

x + 9 = 15

x =  15 - 9

x = 6

(6,3)

This should be the answer but I don't see that in the options u listed, so I don't know what else it should be.

The required solution to the system of equations is (x, y) = (6, 3).  

Given the system of equations:

x + 3y = 15

4x + 2y = 30

Multiply Equation 1 by 2 to make the coefficients of y in both equations equal:

2(x + 3y) = 2(15)

2x + 6y = 30

Subtract Equation 2 from the modified Equation 1 to eliminate the variable x:

(2x + 6y) - (4x + 2y) = 30 - 30

-2x + 4y = 0

Divide the resulting equation by 2 to simplify it further:

-x + 2y = 0

Now, we have a new equation:

3) -x + 2y = 0

Add the new Equation 3 to the original Equation 1 to eliminate the variable x again:

(x + 3y) + (-x + 2y) = 15 + 0

5y = 15

Solve for y:

y = 15 / 5

y = 3

Now, substitute the value of y back into Equation 1 to find x:

x + 3(3) = 15

x + 9 = 15

x = 15 - 9

x = 6

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Answer:

-8

Step-by-step explanation:

-5+-3= -8

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

The expression: -5 + -3 = -8

The total points are -8 points.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Irma is just learning to play the Happy Fairies video game.

In the game, players gain and lose points based on how well they take care of the fairies in their fairy gardens.

Irma had a total of - 5 points.

Her fairy house fell over in the wind and she got - 3 points.

Now,

The total point:

= -5 + -3

= -5 - 3

= -8 points

Thus,

The total points are -8 points.

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Step-by-step explanation:

Hey there!

Here;

The equation is; y = 3x + 2

X = -2 -1 1 2

y = -4 -1 5 8

Now; the coordinates are ; (-2,-4), (-1,-1), (1,5), (2,8).

After this plot them on graph.

Hope it helps..

The revenue functions of the calculator companies is the difference between their cost and profit functions

The price of each calculator when the revenues of AN Calculators and MN Calculators are the same is $2.5

The revenue functions are given as:

RAN (x) = (25 + 10x) (300 - 36x)

RMN (x) = (100+ 20x) (100 - 12x)

When the prices are the same, we have:

RAN (x) = RMN (x)

So, we have:

[tex](25 + 10x) (300 - 36x) = (100+ 20x) (100 - 12x)[/tex]

Divide through by 20

[tex](5 + 2x) (75 - 9x) = (10+ 2x) (50 - 6x)[/tex]

Using a graphing calculator, we have the following value of x

x = 2.5

Hence, the price of each calculator when the revenues of AN Calculators and MN Calculators are the same is $2.5

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Answer:

6

Step-by-step explanation:

Use the formula

ar^n-1

where a=6 and r=1

Answer:

the first answer choice 4/16.

a-b= ?

17-12= 5

? = 5

Please mark as brainliest

Answer:

5

Step-by-step explanation:

Solving

Step 1: Plug in the variables.

Step 2: Subtract 12 from 17.

Therefore, the answer is 5.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

Answer:

The answer is zero

Step-by-step explanation:

Answer:

(-1/2)

Step-by-step explanation:

Answer:

m= -1/2

Step-by-step explanation:

I gotchu homie but the answer has to be 20 characters long

Answer: 33

Step-by-step explanation:

Answer:

18+15+8= 41

Step-by-step explanation:

some words to ask

Answer:

$6.75

Step-by-step explanation:

We already know that 1 pound is 4.50 so we need to find the 0.5 pounds of beef left

Since half of 4.50 is 2.25 we add that to 4.50

4.50 + 2.25 = 6.75

8. 4x²+3y = 4(4)²+3(5) = 4(16)+15 = 64+15 = 79

basically you have to substitute the variable for the given value. (ex. x is replaced by 4 and y is replaced by 5 and z is replaced by 3) FOR BOTH PROBLEMS!

9. (y+z)/x = (5+3)/4 = 8/4 = 2

Answer:

a. (x+y)=-7

a.(x-y)= 1

b. 9-16= -7

Answer:

We can use the sine law to find h. First, we determine the angle between the line of sight and h:

180 - 90 - 39 = 51 degrees

The sine law states that the ratio of one triangle's angle to the opposite side's length is the same as another angle to its opposite side's length, so we can solve for h as follows:

h/sin(39) = 500/sin(51)

h = 500*sin(39)/sin(51)

When we round to the nearest whole number, we get h = 405 ft.

Answer:

1. 8y/-3 = -24

2. 9x - 7 = 20

Answer:

LN and RQ

Step-by-step explanation:

PQR is just an enlargened version of MLN

RQ is just LN but longer

Answer:

-10 vertical and -1 horizontal

we can find the point ( - 1 ; -2) on the curve

so f(-1) = - 2

Answer:

A, D

Step-by-step explanation:

The graph of a proportional relation is a straight line that passes through the origin.

Answer: A, D

Answer:

Step-by-step explanation:

The slope is 3/5

USING RISE/RUN

RISE 3 , RUN 5

UP 3, RIGHT 5

The Y-INTERCEPT = +2

This means the line intersects the graph at 2.

Answer:

Step-by-step explanation:

Answer:

x = 126°

Step-by-step explanation:

x + 54 = 180°

x + 54 - 54 = 180 - 54

x = 126°

Answer:

x= 126°

Step-by-step explanation:

180-54

126°

When a right cylinder is sliced perpendicular to its base, the cross section that we will have is

D. Rectangle

Description of Rectangle

A rectangle is a solid shape with six faces and four vertices, it has two of it sides equal.

Description of Cylinder

We have the square based cylinder, the triangular base cylinder etc.

Unlike the Rectangle, the cylinder has no vertice.

Please see attached the image of cylinders

Learn more about cylinders here:

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Answer:

The players club is playing with the players

Step-by-step explanation:

give me a good Answer to my Question

What is the scale factor of this dilation? a:1/2 b:2/3 c:3/4 d:3/2

Answer:

C) Lines r and s and lines t and u must be parallel

Step-by-step explanation:

not quite sure how to explain this, but hopefully this still helps!

Answer:

Volume of the cylinder is. 1017.36

Step-by-step explanation:

[tex]V=\pi r^2h[/tex] is the area of a cylinder.

Let's plug in our values.

-----

3.14 = pi

9 = radius

x = height

-----

V = (3.14)(9)^2(4)

V = (3.14)(81)(4)

V = (3.14)(324)

V = 1017.36

Answer:

the number is 30

Step-by-step explanation:

the formula i used goes like this

x+2x=45

3x=45

x=15

2x=30

So x is equal to the half number, therefore 2 times x is the whole number. Then you just do algebra to figure it out from there! hope this helps.

Hello.

First, let's clarify what the LCM stands for.

L stands for Least

C stands for Common

M stands for Multiple

So we need to find the Least Common Multiple of 2 and 4.

Let's list the first 5 multiples of 2:

2, 4, 6, 8, 10

Now, the first 5 multiples of 4:

4, 8, 12, 16, 20

As we can see, 4 is the LCM.

I hope it helps.

Have an outstanding day. :)

[tex]\boxed{imperturbability}[/tex]

Answer:

Her pay for the week= $ 611.325

Step-by-step explanation:

Sallie is paid $ 11.40 per hour for regular hours.

The total regular hours worked during the week are

Monday + Tuesday + Wednesday + Thursday+ friday = 8 + 8+ 8+6+8= 38 hours

She works overtime during the week

Monday + Tuesday + Wednesday = 2+ 1/4+  1 1/2=  2+ 1/4 + 3/2

= 8 +1+ 6/4=15/4 = 3 3/4 hours

Over the weekend she works five hours .

So the total pay would be

$ 11.40( 38 ) + $ 11.40( 1.5) (  15/4) + $ 11.40 ( 2) ( 5)

= 433.2 + 64.125 + 114.0

= $ 611.325