Please help very important

Answer:

is this the one?

Step-by-step exExplanation:

Adding third equation to first one,

7

x

+

5

y

+

z

+

x

−

6

y

−

z

=

0

−

18

or  

8

x

−

y

=

−

18

.  

(

1

)

Adding 2 times of third one to second one,

−

x

+

3

y

+

2

z

+

2

⋅

(

x

−

6

y

−

z

)

=

16

−

2

⋅

18

or  

x

−

9

y

=

−

20

(

2

)

Substracting 8 times of  

(

2

)

from  

(

1

)

,

8

x

−

y

−

8

⋅

(

x

−

9

y

)

=

−

18

−

8

⋅

(

−

20

)

71

y

=

142

, so  

y

=

2

Hence,

x

−

9

⋅

2

=

−

20

or  

x

−

18

=

−

20

, so  

x

=

−

2

Thus,

7

⋅

(

−

2

)

+

5

⋅

2

+

z

=

0

or  

z

−

4

=

0

, so  

z

=

4Explanation:

Adding third equation to first one,

7

x

+

5

y

+

z

+

x

−

6

y

−

z

=

0

−

18

or  

8

x

−

y

=

−

18

.  

(

1

)

Adding 2 times of third one to second one,

−

x

+

3

y

+

2

z

+

2

⋅

(

x

−

6

y

−

z

)

=

16

−

2

⋅

18

or  

x

−

9

y

=

−

20

(

2

)

Substracting 8 times of  

(

2

)

from  

(

1

)

,

8

x

−

y

−

8

⋅

(

x

−

9

y

)

=

−

18

−

8

⋅

(

−

20

)

71

y

=

142

, so  

y

=

2

Hence,

x

−

9

⋅

2

=

−

20

or  

x

−

18

=

−

20

, so  

x

=

−

2

Thus,

7

⋅

(

−

2

)

+

5

⋅

2

+

z

=

0

or  

z

−

4

=

0

, so  

z

=

4planation:

Te adjunto un fichero con la solución.

Answer: $13,308

5.8% of 6000 is 348. 348 times 21 is $7,308. add 6,000 to 7,308 and you get $13,308

Step-by-step explanation: amy likes cheap rings LOL

Answer:

54 3/4 years

Step-by-step explanation:

5.8% of 6,000= 348

348x54 3/4=19,053

hope it helps!

Answer:

9p^2-12p+4

Step-by-step explanation:

Apply perfect square formula;

a=3p , b=2

Apply perfect square formula;

(3p)^2-2*3p*2+2^2

Simplify:

=9p^2-12p+4

Answer:

The best deal is the 18 ounce box

Answer:

the 18 ounce box is cheapest per ounce

Step-by-step explanation:

1. .28per ounce

2. .31per ounce

3. . 26per ounce

4. .25per ounce

Answer:

3/1.....4/1

Step-by-step explanation:

Answer:

994.88 in2

Step-by-step explanation:

Use the surface area formula SA = 4(pi)(r2) which results in SA = 4(3.14)((8.9)2) = 994.88 square inches. Because the bowl represents half a sphere, it is necessary to divide that answer by 2 to get the surface of the bowl.

If radius of a salad bowl is 8.9 inches then the surface area of the bowl is 497.44 square inches, option c is correct.

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

Given that  radius of a salad bowl is 8.9 inches.

We have to find the  surface area of the bowl

The surface area of a half-sphere is given by the formula:

SA = 2πr²

where r is the radius of the sphere.

In this case, the radius of the salad bowl is 8.9 inches.

Substituting this value into the formula, we get:

SA = 2 x 3.14 x (8.9)²

SA = 497.44 square inches

Surface area =497.44 square inches

Hence, if radius of a salad bowl is 8.9 inches then the surface area of the bowl is 497.44 square inches, option c is correct.

To learn more on Three dimensional figure click:

https://brainly.com/question/2400003

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Answer:

22.5

Step-by-step explanation:

Answer:

x = 22.5

Step-by-step explanation:

x - 9= 3/5x

3/5x - x = -9

-2/5x = -9

x = 22.5

Answer:

undefined

Step-by-step explanation:

To find the slope

m = ( y2-y1)/(x2-x1)

   = ( 6-5)/( -2 - -2)

   = (6-5) /(-2+2)

    = 1/0

We cannot divide by zero, so the slope is undefined

Answer:

If a is positive and b is greater than 1 , then it is exponential growth. If a is positive and b is less than 1 but greater than 0 , then it is exponential decay

Step-by-step explanation:

small baby answer

Answer:

a ray can be defined as a part of a line that has a fixed starting point but no end point. It can extend infinitely in one direction. It can extend infinitely in one direction.

Answer:

Because when a ray will pass through a circle,it will Pass through two points making it a line segment in the circle

What is the original angle? You didn't provide us with enough information. If the angle is reflected, it'll be the same number of units as the original shape.

Hope this helped.

Answer:

C

Step-by-step explanation:

The probability of students response is milk is 0.311.

Probability deals with the occurrence of a random event. The chance that a given event will occur. It is the measure of the likelihood of an event to occur.The value is expressed from zero to one.

For the given situation,

The table shows the students preference of milk, juice or water.

Total number of students preferred milk = 14

Total number of students = 45

Thus the probability that the students response is milk is

[tex]P(e)=\frac{14}{45}[/tex]

⇒ [tex]P(e)= 0.311[/tex]

Hence  we can conclude that the probability of students response is milk is 0.311.

Learn more about probability here

https://brainly.com/question/24091416

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Answer:

The Price of socks is  

=

$

8

Explanation:

Given -

Discount 25%

Price of shirt before discount  

=

$

24

Amount spent on both shirt and socks after applying discount  

=

$

24

Assume the price of socks  

=

$

x

Then Shirt + Socks before discount =

$

(

24

+

x

)

After discount one has to pay 75% of the article.

Then -

75

100

(

24

+

x

)

=

24

0.75

(

24

+

x

)

=

24

18

+

0.75

x

=

24

0.75

x

=

24

−

18

=

6

x

=

6

0.75

=

8

The Price of socks is  

=

$

8

How to verify your answer -

One way

Price of shirt =$24

Price of socks =$8

Total =$32

Discount =25%

Discount for $32 is  

32

×

25

100

=

$

8

Amount one has to pay after discount  

=

32

−

8

=

$

24

Another way is -

Discount 25%

It means after discount it is enough if he pays 75% of the price.

In our case - Actual price is  

=

$

32

75% of $32 is  

=

32

×

75

100

=

2

Step-by-step explanation:

Answer:

1=x and 2=y

Step-by-step explanation:

Answer:

the answerrrr I believe is C

Answer:

users are not supposed to help you on test, quiz's or assessments. according to the T.O.S of brainly aka the honor code

Step-by-step explanation:

Answer:

138.16

Step-by-step explanation:

multiply them all together

Answer:

3

Step-by-step explanation:

on delta math

Answer:

4x+6y

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

In order to be able to find the circumference in relation to radius, you have to use the formula C = 2πr

Hope this helped :)

Answer:

350 also I don't care about brainiest

Answer: 350

Step-by-step explanation:

Just do 25x14=350. And yes you can check brainless just go to your profile by tapping on your name or picture.

Answer:

We have now seen solutions method for the three basic types of percent problems ;finding the amount, the rate, and the base

Answer:

4 granola bars

Step-by-step explanation:

x is the number of granola bars

1 + 2.5x = 11

2.5x = 10

x = 4

Answer:

Step-by-step explanation:

[tex]d=\sqrt{(3-8)^2+(8-2)^2} =\sqrt{25+36 }=\sqrt{61} \approx 7.81[/tex]

Answer:

$11,000

Step-by-step explanation:

Ans) 70

Tell me if you need steps

(Am 100% sure with this answer)

Answer: I believe it is 92

Step-by-step explanation:

Answer:

168 pages/7 days = 24 pages/1 day

Hope that helps, dude.

Answer:

It is D

Step-by-step explanation:

It could be A but if we read the sentence correctly than we should understand about the number of stamps she bought in every month and how much her grandmother gave her.We should also read the options more than 10 times to understand it