Mathematics High School

Which equation can be used to find the value of x?​

Which Equation Can Be Used To Find The Value Of X?

Answers

Answer 1

Answer: D

Step-by-step explanation:

The perimeter is all the sides added up

2.5x + 2.5x + 10 + 2 + 10 =>

5x + 22

It is also given that the perimeter is 10.5x

meaning that both these values are equal

5x + 22 = 10.5x

Related Questions

Consider a student’s work in determining the solution set of x > 2(y – 1)^2 – 2.

Test point: (2.25, 1.25)

x > 2(y – 1)^2 – 2

2.25 > 2(1.25 – 1)^2 – 2

2.25 > 2(0.25)^2 – 2

2.25 > 2(0.0625) – 2

2.25 > 0.125 – 2

2.25 > –1.875

Conclusion: The point (2.25, 1.25) satisfies the given inequality.

Solution set:



Which element, if any, shows an error in the student’s work?

There are no errors.
The conclusion statement is incorrect.
The graph of the solution set is incorrect.
The substitution of x and y values is incorrect.

Answers

Answer:

C. The graph of the solution set is incorrect.

Step-by-step explanation:

Solution is right, properly substituted x- and y-values, no mistakes. Conclusion is right, the point within the solution set. The only mistake is the graph, with > sign the line of the graph is not included into solution, therefore should be dotted.

There are no errors.

Incorrect (the graph)

The conclusion statement is incorrect.

Incorrect

The graph of the solution set is incorrect.

Correct (the line should be dotted)

The substitution of x and y values is incorrect.

Incorrect

Answer:

Its C

Step-by-step explanation:

In ΔXYZ, z = 49 inches, ∠X=9° and ∠Y=108°. Find the area of ΔXYZ, to the nearest square inch.

Answers

Answer:

200

Step-by-step explanation:

delta math

its 200.456 before rounding

Evelyn is making a candy that contains 25% dark chocolate and the rest milk chocolate. The candy has 3 pounds of milk chocolate. How many pounds of dark chocolate are present in the candy? Show your work. (5 points)

Answers

Answer:

1 pound

Step-by-step explanation:

Evelyn is making a candy that contains 25% dark chocolate and the rest milk chocolate

therefore, 75% = milk chocolate

3 pounds = 75%

25% = ?

25 % = 1 pound

1 pound of dark chocolate is present in the candy.

Which ordered pair is a solution of y = x - 4?

A: (3,-7)

B: (-3,-7)

C: (3,7)

D: (-3,7)

Answers

Answer:

The correct answer is (-3,-7). This is because you can plug it in and the two sides are equal to each other. When you plug -3 in for x, you subtract for from it and get -7 since the y term is -7 the answer is -7=-7, thus (-3, -7) is the answer.

Step-by-step explanation:

Hope this helps     :)

89.2 divided by 0.8=

Answers

Answer:

111.5 is the answer, so yeah

Answer:

0.8=8×10^-1

89.2=892×10^-1

892×10^-1/8×10^-1

=111.5

Factor 18r+15s escribe tu respuesta como un producto con un número entero >1?

Answers

18r+15s add it then yu will get

Alex made a rectangular blanket that has an area of 8 square feet the length of his blanket is 8 feet what is the width in feet of his blanket

Answers

Answer:

1ft

Step-by-step explanat

Answer:

5 ft.

Step-by-step explanation:

I need help pleaseeeeee

Answers

Answer:

3.5,3 there you go buddy

Step-by-step explanation:

Help me with number 2 and I’ll mark you brainliest please!

Answers

Answer:

Point (0,-27)  lies on the line.

Point (-9,0) does not lie on the line.

HELP ME I WILL BRAINLIST YOU ​

Answers

Answer:

A

Step-by-step explanation:

Because Im doing test corrections now :(

PLZZZZ HELP ME!!!!!Subtract 11/14-2/7?Make sure your answer is fully reduced.​

Answers

Answer:

the answer is 7/14 or 1/2

Answer:

1/2

Step-by-step explanation:

First, you'll have to get a common denominator, which will be 14.

11/14 - 4/14 = 7/14 ----> 1/2

Z+k, when z=1 and k = 7

Answers

Answer:

8

Step-by-step explanation:

Replace the variables with numbers.

1+7=8

Answer:

8

Step-by-step explanation:

Since z equals 1 and k equals 7, we do 1 + 7 which is equal to 8. Therefore, the answer would be 8.

What is the volume, in cubic inches, of a rectangular prism with a height of 19 inches, a width of 11 inches, and a length of 4 inches?

Answers

Answer:

836

Step-by-step explanation:

4 times 19 times 11

Find the mean
13, 10, 10, 17, 10

Answers

the mean is 12

explanation: you add all of the numbers and then divide it by the amount of number u have

Answer:

12 is your answer

Step-by-step explanation:

Heres how to find it:

How to Find the Mean. The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

13+10+10+17+10=60

60/5=12

12

Hope this helps!

Have a great day!

Brainliest is appreciated!!!

find the location of point A after a rotation of 90 clockwise around the origin ​

Answers

Answer:

(6,-4)

Step-by-step explanation:


O A. 120 cm3
B. 120 units3
C. 630 cm2
O D. 120 units

Answers

Answer:

the answer is B

hope this helps

Step-by-step explanation:

i did the math

The expression on the left side of an equation is shown below.

3 x + 9 = box

If the equation has no solution, which expression can be written in the box on the other side of the equation?

Answers

I got no clue how to do this bruvvvvvvvvv

What number should both sides of the equation be multiplied by to solve for x?

x/4.5 = 6

4
5
6
4.5

Answers

Answer:

4.5

Step-by-step explanation:

Answer:

4.5. Since you‘re dividing x by 4.5, multiply it by 4.5 to cancel the 4.5. Do the same with the other side.

:)

Can someone help me pls

Answers

Answer:

237?

Step-by-step explanation:

Answer:

198

Step-by-step explanation:

Hello There!

An included angle is equal to 1/2 of its opposite arc

So basically arc ABC = 2 * angle D

99x2 = 198 so the measure of arc ABC is 198

In a bowl there are 15 candy bars.

6 are Snickers
5 are Kit Kat
The rest of the candy bars are Milky Ways
If you eat a candy bar and then choose another candy bar, what is the probability that the first bar will be a Snickers and the second will be a Milky Way?

Answers

Answer:

The answer should be 10/27, good luck!

2. Which expression is equivalent to 5(n + 3) - 10? A. 5+1 +5+3 – 10 B. 5 • n + 5 + 3 - 10 C. 5. n + 5 • 3 – 10 D. 5 • n • 5 • 3 – 10​

Answers

Answer:

5n+5

Step-by-step explanation:

5(n+3)-10

5n+15-10

5n+5

List six consecutive prime numbers

Answers

Answer:

Step-by-step explanation:

In case someone is not sure what consecutive prime numbers are, here is an example: 17, 19, 23, 29, 31, and 37 are six consecutive prime numbers because they are ALL the prime numbers from 17 to 37 and they are listed in order.

Find the volume of a right circular cone that has a height of 11.9 ft and a base with a radius of 16.3 ft. Round your answer to the nearest tenth of a cubic foot.

Answers

Answer:

3311.36ft^3

Step-by-step explanation:

Given data

Height h= 11.9ft

Radius=16.3ft

The expression for the volume of a cone is given as

Volume= 1/3πr^2h

substitute

Volume=1/3*3.142*16.3^2*11.9

Volume= 1/3*3.142*265.69*11.9

Volume= 1/3*9934.095962

Volume=3311.36ft^3

Hence the volume is 3311.36ft^3

Write a slope intercept equation for the following table can SOMEONE PLEASE answer

Answers

Answer:

Step-by-step explanation:

(-2, -3)  (-1, -1)

(-1 + 3)/(-1 + 2)= 2/1 = 2

y + 3 = 2(x + 2)

y + 3= 2x + 4

y = 2x + 1

if 3.142×110 = 345.62, why is the decimal point not infront of the 5?​

Answers

Answer:

It is not infront of the 5 because when mutiplying it goes above a whole number so the . has to move back.

Step-by-step explanation:

Answer:

It has to be in front of the 5 since you have to move the decimal 2 places to the right and it lands beside the 5

Jewel spun a spinner and recorded the results in the table. What is the experimental probability of the spinner landing on an even number? ​

Answers

Answer:

1/2 or 3/6 or 50%

Step-by-step explanation:

Half of the numbers are even.

$120 for mowing 4 lawns =$_ per lawn

Answers

all you have to do here is divide how much money she made versus how many lawns they mowed.

120/4= 30

this means they made $30 per lawn

8)
3 cm
3 cm
2 cm
2 cm
6 cm
9 cm
Find the area of the figure.
1)
A)
96 cm2
B)
110 cm2
120 cm?
D
150 cm2

Answers

Answer: the answer is 96

Step-by-step explanation:

Because i did it on USA test prep.

What is the answer to this question ..............................................................................................................................................................................................................................................................................................................................................Has anyone elses weekend gone like this

Answers

yes laugh out loud hahah

Answer:

THIS IS JUST SO NORMALLL....SO RELATEABLE

Step-by-step explanation:

plss do a favour...mark min e as brainliest...plsss

Could some1 help with this?

Answers

Answer:

answer is B hope this helps

Step-by-step explanation:

B is the correct answer
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