Can someone please help me with these postulate questions I've been asking for days now. I will mark Brainliest if right!!! Explain!

Answer:

x = 4, y = 5

Step-by-step explanation:

[tex]2x-y=3\\4x-2y=6[/tex]

so:

[tex]4x - 2y = 6\\+ 5x + 2y = 30\\9x= 36\\x=4[/tex]

Substitute this into 2x - y = 3:

[tex]8-y=3\\y = 5[/tex]

The answer is A

1 1/2 *2 *1 1/2 = 4.5 or 4 1/2

A i guess?

i dont no but maybe

Answer:

0.2p is the correct

Answer:

i dont know what is that lol

Step-by-step explanation:

79.5

5/19.3 = 19.3/p (cross Multiplication)

372.49=5p Divide 5 is 74.49 round to the nearest tenth (74.5) then plus the mans height (5) which equals 79.5

Answer:cost per text

Step-by-step explanation:t represents the slope, so it is the cost per text, but I could be wrong

Answer:

x/3 is the correct

Step-by-step explanation:

hope you have a great day!

Answer:

9

Step-by-step explanation:

Answer:

K = 75000 Joules

Step-by-step explanation:

K = 1/2mv^2

K = 1/2(1500)(10^2)

K = 1/2(150000)

K = 75000 Joules

Answer:

43.96

Step-by-step explanation:

Formula for Circumference is: C=2πr

C=2•3.14•7 7 is radius bc it's half of diameter

2•3.14= 6.28

6.28•7= 43.96

hope this helps chu babe <3

Answer:

452+(783-546)

Step-by-step explanation:

Add 452 ; 452+

the difference of 783 and 546 ; 783-546

You add in the parentheses so that you're adding 452 to the difference of the two other numbers instead of to 783.

He can make 4 pancakes with the whole mixture.

Step-by-step explanation:

It is given that,

Jaylen has a total of pancake mixture = 1 liter.

The amount of pancake mixture he uses to make 1 pancake = 1/4 liter.

You need to find the number of pancakes he can make using the 1 liter of pancake mixture.

To find the number of pancakes :

let us take 'N' be the number of pancakes he can make using 1 liter of mixture.

⇒ Total mixture = amount of mixture needed for 1 pancake × N

⇒ 1 liter = 1/4 liter × N

⇒ 1 = N/4

Cross multiply the denominator 4 to the other side, to find N

⇒ 1 × 4 = N

⇒ N = 4 pancakes

Therefore, he can make 4 pancakes with the whole mixture.

From 8:25 am to 30 seconds past 8:29 am, there are 4.5 minutes. Her speed is calculated by dividing the distance of the post office from her house by the time.

         Speed = 0.75 mile / 4.5 minutes = 1/6 mile / minute

Determining the number of minutes she will have to take in order to reach school,

         Time = 3.42 mile / (1/6 mile/minute) = 20.52 minutes

Adding this to the initial time,

           Final time = 8:25 am + 20.52 minutes

                    = 8:45 am and 31.2 seconds.

She will reach the school on time even without increasing her speed.

3 x 3

You are multiplying 3 by itself , so you have two 3’s.

Exponential form is the number raised to the total numbers:

Answer is 3^2

Answer:

The trip took 7 hours, 46 minutes

Step-by-step explanation:

Hope this helps

7 hours, 46 minutes

Step-by-step explanation:

Hope this helps!

Answer:

B

Step-by-step explanation:

Because a triangle has to add up to 180 degrees and the only one that does is B

Both ABC and DEF are right triangles.

Because BC is congruent to EF, two of the corresponding angles of the triangle are congruent.

C is congruent to F

(I don't know the last one, In sorry, I hope this helps-)

Answer:

x = 20

Step-by-step explanation:

just or the record, it only 5 points, not 50

180 - 80 = 100

3x + 2x = 5x

5x = 100

divide by 5

x = 20

Plz mark as brainliest if correct! Have a nice day!!!

-Lil G

Answer:

x=25

Step-by-step explanation:

Hey There!

Those angles are supplements meaning all of them added together will equal 180

so we set up an equation

180 = 3x+2x+80 and solve for x

step 1 combine like terms

3x+2x=5x

now we have

180=5x+80

step 2 subtract 80 from each side

180-80=100

80-80 cancels out

now we have

5x=100

step 3

divide each side by 5

5/5 cancels out

100/5=25

x=25

Therefore the value of x is 25

Hope this helps :)

Answer: [tex]6x-8[/tex]

Step-by-step explanation:

Let's get rid of the parenthesis' here as they are useless in this equation

[tex]3x+6-4+3x+6-4\\[/tex]

Now we combine like terms

[tex]3x+3x=6x\\6-4+6-4=-8[/tex]

Your answer will be

[tex]6x-8[/tex]

Answer:

-6, -4, -3, and -1 only

Step-by-step explanation:

hope this helps!

Answer:

try doing it on your own so you can get better at it

Answer:

El perímetro del triángulo rectángulo es aproximadamente 29.627.

Step-by-step explanation:

Las coordendas de los vértices del triángulo rectángulo son [tex]A(x,y) = (1,-2)[/tex], [tex]B(x,y) = (-8,4)[/tex] y [tex]C(x,y) = (5,2)[/tex]. En primer lugar, determinamos las longitudes de los segmentos AB, BC y AC por el Teorema de Pitágoras:

[tex]AB = \sqrt{(-8-1)^{2}+[4-(-2)]^{2}}[/tex]

[tex]AB \approx 10.817[/tex]

[tex]BC = \sqrt{[5-(-8)]^{2}+(2-4)^{2}}[/tex]

[tex]BC \approx 13.153[/tex]

[tex]AC =\sqrt{(5-1)^{2}+[2-(-2)]^{2}}[/tex]

[tex]AC \approx 5.657[/tex]

El perímetro del triángulo ([tex]p[/tex]) es la suma de todos estos segmentos:

[tex]p = AB + BC + AC[/tex]

[tex]p \approx 29.627[/tex]

El perímetro del triángulo rectángulo es aproximadamente 29.627.

Answer:

-1

Step-by-step explanation:

here's your solution

=> The value of x = 1

=> The value of y = 2

=> we need to find ( x - y)

=> so, put the value of above variables in it

=> hence, (1 - 2) = - 1

=> - 1 is correct answer

hope it helps

Answer:

1. Scalene 2. Isosceles 3. Isosceles

just did the test

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

15: 100 = x : 180

x = (180 x 15) / 100 = 27

Answer:

27

Step-by-step explanation:

Seems like your question(shown/written) is incomplete. Based on the given data.

15% of the total students participated in soccer

15% of 180 students participated in soccer

=> 15/100 x 180

=> 2700/100

=> 27

27 students participated in soccer

Answer:

1831

Step-by-step explanation: