Mathematics High School

Which value of x makes the equation 2 + 8 = 15
true?

Answers

Answer 1

Answer:

5

Step-by-step explanation:

Answer 2

Answer:

x = 3 [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

there's no x in the equation you wrote.

Did you mean?

2x + 8 = 15

Subtract 8 from both sides

2x = 7

Divide both sides by 2

x = 7/2

x = 3 [tex]\frac{1}{2}[/tex]

Related Questions

Select the correct answer. What is the approximate distance between points D and E? Round your answer to the nearest hundredth. A.

Answers

Answer:

The approximate distance between points D and E is 8.25

Step-by-step explanation:

The figure is as follows :

To find - What is the approximate distance between points D and E ?

Solution -

By Pythagoras Theorem, we get

(DE)² = (FE)² + (DF)²

        = (8)² + (2)²

        = 64 + 4

        = 68

⇒(DE)² = 68

⇒DE = √68

⇒DE = 8.246

∴ we get

The approximate distance between points D and E is 8.25

Fill in the blank to complete this trig
ratio.
y
tan a =
a
Х
[?]
B
N
B
С
у
Z

Answers

Answer:

z/y

Step-by-step explanation:

HElP NEED ANSWER FAST WILL GIVE BRAIN

Answers

Answer:

c

Step-by-step explanation:

Can someone help I don’t understand

Answers

Answer:

8 hr

Step-by-step explanation:

8hr

hope this helps you!

An angle measures 79.6° less than the measure of its complementary angle. What is the measure of each angle?

Answers

Answer:

y = 259.6/2 = 129.8 degrees. so x = 129.8 - 79.6 = 50.2 degrees.

Step-by-step explanation:

I got this answer from somewhere else. but it is correct. i hope this helped.

Forty-five percent of what number is 15.75?​

Answers

45 percent (calculated percentage %) of what number equals 15.75? Answer: 35.

Answer:

35

Step-by-step explanation:

15.75 / 0.45 = 35

1a.) Brian borrowed 4 non-fiction books from the library. This was 25% of the
books he checked out. How many books did Brian check out? *

Answers

Answer:

Total number of books borrowed= 16

Step-by-step explanation:

Giving the following information:

Number of non-fictions books= 4

Percentage of books borrowed= 25% = 0.25

To calculate the total number of books borrowed, we need to use the following formula:

Total number of books borrowed= 4 / 0.25

Total number of books borrowed= 16

A video game rental store charges a $20 membership fee plus $2 for each game rented. Click to show whether each statement is true or false. True False The slope of function 2 is greater than the slope of function 1 and less than the slope of function 3 The slope of function 1 is 4 times the slope of function 3. The y-intercept of function 2 is less than the y-intercept of functions 1 and 3. The y-intercept of function 2 is greater than the y-intercept of function 3.​

Answers

Answer:

the member ship gay

Step-by-step explanation:

m8 m88m8m88m8m88m

y=2.50+20 hope this helps

i will give brainiest if correct please hurry!!
You flip a coin 50 times and get 26 tails. What is the experimental probability of flipping heads? Write your answer as a simplified fraction or a percentage.

Answers

Answer:

12/25

Step-by-step explanation:

If you got 26 tails, that means you got 50 - 26 or 24 heads. The experimental  probability can be represented by the desirable flips over the total number of flips. We are looking for heads, so the amount of heads is the amount of desirable flips, and the total is 50. From this, we get the fraction 24/50 which simplifies to 12/25.

hello please help i’ll give brainliest

Answers

Answer:

Volcanic Eruptions, Earthquakes, Erosion

I am very sorry if this is wrong

Have a great rest of your day and good luck!

Answer:

the answer is a, b, and d

Step-by-step explanation:

erosion is caused by wearing down overtime

With Company A, you can take a 2.25 hour helicopter ride for $ 270.
With Company B, you can take a 90-minute helicopter ride for $ 180.

Which of the two helicopter companies gives you the best ride for your money?

Answers

Answer:

B

Step-by-step explanation:

The Answer is B
I already take this question before

Someone answer this for me

Answers

Answer:

I think it is B or 17 ft

Step-by-step explanation:

Hope this helps. Tell me if I'm wrong

Answer: Probably 30

Step-by-step explanation: If you multiply 12 x 5 = 60, which we don't see that answer. I'll say C because 12 + 12 is 24. Add 5 and you get 29. The closer answer to 29 is 30. I could be wrong because I'm only in Middle School and kinda get confused with questions like these.

5.

A balloon is released from the top of a building. The graph shows the height of the balloon over time. What does the slope and y-intercept reveal about the situation?


A. The balloon starts at a height of 0 ft and rises at a rate of 10 ft.

B. The balloon starts at a height of 10 ft and rises at a rate of 0 ft.

C. The balloon starts at a height of 0 ft and rises at a rate of 100 ft.

Answers

Answer:

Step-by-step explanation:

the balloon starts at a height of 0 ft and rises at a rate of 100 ft.

*** 10 points**** if you help me

Answers

Answer:

h squared is 65 but h is 8.06

Step-by-step explanation:

use the pythagorean theorem

7^2+4^2=

49+16= 65

square root of 65 is 8.06

hope this helps

Help! it's easy but I need help

Answers

Answer:

no lol

Step-by-step explanation:

Answer:

i will tell you what to do and then you do the work

Step-by-step explanation:

arrange the numbers from lowest to largest

count the amount of numbers to find how many students wrote each test

to find the mean add all of the numbers up then divide by the amount of numbers there are

to find the mode it that is the number that appears the most or the most common value

to find the median is the middle number, when you put it from lowest to largest, it will be the middle number

hope this helps

Jay wants to spend less than $80 He plans to buy a pair of jeans that cost $19.99 and some shirts that cost \$14.99 each Write an equation or inequality to represent the number of shirts Jay can buy Define all variables used • What is the greatest number of shirts that Jay can buy while spending less than $80 ? Show your work​

Answers

Answer:

give me brainllest if it is right

a. $19.99 + $14.99 = $34.98

b. Jay can buy 5 shirts without spending more than $80

Step-by-step explanation:

7676767676767676767676767

Answers

Answer:

uhhh is this a trick question lol

have a good day :D

Step-by-step explanation:

help please please please

Answers

Answer:1152 miles

Step-by-step explanation: we know he can drive 384 in 6 hours so if we multiply 6 by 3 its 18 so we must multiply 384 by 3 and the answer would be 1152

1152 miles would be your answer

What percent df 160 is 56? Use the percent bar model.

Answers

Answer:

35%

i think

Step-by-step explanation:

A company is testing a new protein shake which they claim works better than their existing brand in improving an athlete's performance. The company selected 60 athletes from a training camp database, and divided them into three groups. The ages for the groups were 16 to 20 years, 21 to 25 years, and 26 to 30 years. In each group, half of the subjects were asked to use the new protein shake for a month, and the other half were asked to use the company's existing brand for a month. The subjects were not informed about which protein shake they would be using. Which statements about this study are true? The study uses blocking to reduce variability from known factors. The study does not use a control group. The study uses random sampling. The study uses blocking on the basis of gender. The study uses a repeated measure design to reduce variability from unknown factors.

Answers

Answer:

The study uses random sampling

The study uses blocking to reduce variability from known factors

Step-by-step explanation:

Correct on Plato/Edmentum

Study uses blocking to reduce variability from know factor

and The study uses random sampling are the true statements

What is random sampling?

Random sampling is a part of the sampling technique in which each sample has an equal probability of being chosen

Here study uses blocking to reduce variability from know factor

The study uses random sampling

Hence, study uses blocking to reduce variability from know factor

and The study uses random sampling are the true statements

Learn more about Random sampling here

https://brainly.com/question/17238189

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Answers

Answer:

Monsoon.

Step-by-step explanation:

Answer:

upper level

Step-by-step explanation:

I think it is because it it sounds like it match

Kyle spends $44 for four sweatshirts.

Answers

Answer:

I think the answer is B. sorry if its wrong..

Step-by-step explanation:

Answer:

Bar C and the equation 4y = 44

Hope this helps!

a plastic box contains balls of different colors. among them, 18 balls were chosen. what does the number 18 represent?

Answers

Answer:

the amount of that were pulled out

Step-by-step explanation:

What are all the zeros of the function f(x) = 4x^2 + 8x + 3?

Answers

Answer: -1/2 and -3/2

Step-by-step explanation:

X1= -3/2 x2= - 1/2

I think I’m not sure

I will give brainliest to the first person to answer the question! Please be correct and please help <33

Answers

Answer:

112.25

Step-by-step explanation:

Answer:110.25

Step-by-step explanation:

If the sun is 58° above the horizon, find the length of the shadow cast by a building 62 ft tall. Round your answer to the nearest tenth.

Answers

Answer: 56

Step-by-step explanation:

Slope of the line that passes through (8,-9) and (14,-9)

Answers

Answer:

slope = 0

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (8, - 9) and (x₂, y₂ ) = (14, - 9)

m = [tex]\frac{-9+9}{14-8}[/tex] = [tex]\frac{0}{6}[/tex] = 0

Write an explicit function in terms of n that describes the following sequence:
−2, 4, −8, 16, −32, 64

Answers

Answer:

aₙ = -2(2)^(n-1)

Step-by-step explanation:

if A={1,2,3,4} and B={3,4,5,6} are two sets,find (A-B).​

Answers

Step-by-step explanation:

[tex](A-B) = ( - 2, \: - 2, \: - 2, \: - 2)[/tex]

if you roll a dice one time what is the probability for it to land on a number greater than 2​

Answers

Answer:

4/6

Step-by-step explanation:

The answer is 4/6
This is because there is 6 sides to a dice and the side with 1 and 2 are the only sides with numbers less than 2. So only 4 sides out of the 6 can be greater giving the answer 4/6!
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