2x + 10 =28
What is the solution to this equation?

Answers

Answer 1
X= 9
Work:
2x + 10= 28
2x-10= 28-10
2x= 18
X= 18/2 which equals 9

Related Questions

What is the slope of (10,3) and (2,3)

Answers

Answer:

m=0

Step-by-step explanation:

the formula given for slope (m) calculated from two points is given as (y2-y1)/(x2-x1)

we are given the points (10,3) and (2,3)

label the values of the points to use for the formula:

x1=10

y1=3

x2=2

y2=3

plug into the formula

m=(3-3)/(2-10)

subtract

m=0/-8

divide

m=0

therefore, the slope is 0

Hope this helps! :D

0/-8

i’m not very good at explaining but that is the answer ^^

Genevieve is 3 years older than twice her brother's age. Genevieve is 21 years old. Write an equation to find her brother's age.​

Answers

Her brother is 9.

Because she is 3 years older than half his age, subtract 3 - 21. This gives 18. Then divide 18 / 2. This gives 9.

The equation that represents Genevieve's brother is y = 18/2.

What is the equation that represents Genevieve's brother age?

The equation that represents Genevieve's age:

21 = 3 + 2Y

Where Y represents Genevieve's brother age

In order to determine the required equation, make y the subject of the formula

21 - 3 = 2y

18 = 2y

y = 18/2

To learn more about linear functions, please check: https://brainly.com/question/26434260

What is the solution to the equation startroot 2n+28 endroot -4 startroot n endroot =0 n=2 n=4 n=7 n=14

Answers

the answer is 7 because yeah

Answer:

C

Step-by-step explanation:

EDGE

can someone help me with this one 2x2-18=0

Answers

Answer:

-14

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

2x-18=0

2x=18 /:2

x=9

-x + 3y = -12 in slope intercept form. please show step by step. thanks :)

Answers

Answer:

y=x/3 - 4

Step-by-step explanation:

add x to get x to the other side

3y= x-12

divide by 3 on both sides to get y by itself y= x/3 - 4 is simplest form

Answer:

slope intercept form is y=mx+b

add x to both sides : 3y=x-12

divide by 3 on both sides : y=(1/3)x-4

nnnd i put both equations in desmos n they r the same :)

Guys pls help me!!!!!!!! (It’s not c)

Answers

The correct answer is A

Answer:

The answer is D .

Step-by-step explanation:

Hope it was helpful .

John drank 12 oz of soda. If this was 60% of the soda in the bottle, how many ounces of soda were in the full bottle?

Answers

Answer:

20oz

Step-by-step explanation:

60%=12oz

this can be simplified into 1%

in order to find 1% divide by 60

60%/60=1%

in order to find out how much 1% is, divide 12oz by the number used to divide the percent

12/60=0.2

so 0.2=1% and we want to know 100% so multiply by 100

0.2x100=20

1%x100=100%

so 20oz=100% of the bottle

Help, please!!!!!!!!!!!!!!!!

Answers

LOL same I’m stuck with this question too

The combined area of the lots is 8,375 square feet. How many feet wide is Lot Y?

Answer Choices

53 feet
55 feet
120 feet
125 feet

Answers

The answer is 55 feet

The x-coordinate of the vertex of the function y=-x²+bx+3 is 10. Determine the y-coordinate of the vertex.

Answers

Answer:

103

Step-by-step explanation:

Given function:

y = -x² + bx + 3

The x-coordinate of a quadratic function y = ax² + bx + c is determined by:

x = -b/2a

The given function has:

x = 10, and a = -1

Find the value of b:

10 = -b / -2b = 20

The function is:

y = -x² + 20x + 3

The y-coordinate of the vertex is:

y = -(10²) + 20*10 + 3 = -100 + 200 + 3 = 103

Answer:

Solution given:

y = -x² + bx + 3

we have

The x-coordinate of a quadratic function y = ax² + bx + c is determined by:

x = [tex] \frac{ - b}{2a} [/tex]

we have

x = 10, and a = -1

Substituting value of a in -b/2a

we get

b = 20

now

The y-coordinate of the vertex is:

y = -(10²) +20*10+ 3 = -100 + 200 + 3 = 103 is your answer.

Mrs. Valdez created a scatter plot that showed the number of days a student was absent compared to the student's grade average in class.

Answers

Answer:

I believe it's the last one... "The association is linear based on the overall pattern"

8(a+5)=8•a+8•5
___. ___
= |_?_|a + |_?_|

Answers

Answer:

|8|a + |35|     or      = |-8|a+|-35_|

Step-by-step explanation:

8(a+5)=8•a+8•5

         =8a+35

         = |8|a + |35|     or      = |-8|a+|-35_|

I had 3 apples. I add 2 more apples. How many apples do I have?

Answers

Answer:

5 lol

Step-by-step explanation:

Answer:

5 im so smart :)

Step-by-step explanation:

Please help I will mark brainiest answer

Answers

$122 for 10 necklaces

1 Kembangkan setiap yang berikut.
(a) 3x(2 - xy)
(b) (4p + 9(-2)

Answers

Answer:

6x*2-3x*2y

4p-18

Step-by-step explanation:

help agine plz i will give branliets

Answers

You need to have 1 hundred block and 5 ten sticks and 3 one dot

PLZ HELP ASAP!!!! NEED HELP!!!

Answers

Answer:

I'm pretty sure the answer is C

An elevator in an old building can hold four people at a time. The elevator also has an overall weight limit of 800 pounds. The weight of a group of people in the elevator will be represented by w. Choose ALL inequalities that represent w correctly. A) 4 ≥ w ≤ 0 B) 0 ≥ w ≤ 4 C) w ≤ 0 ≤ 800 D) 0 ≤ w ≤ 800 Eliminate E) 800 ≥ w ≥ 0

Answers

Answer:(D and E)

Step-by-step explanation:I know this because I got it right in usa test prep

Answer:

A and C

Step-by-step explanation: I just took the quizz

What is the median? 0.8 1.0 2.7 2.8 3.1 13.3

Answers

Answer:

2.75

Step-by-step explanation:

The median is just the middle number in the number set. So, you put the numbers in order (which they already are), and find the middle number. If there are two numbers in the middle (which only happens if there is an even amount of numbers), then you add both of them and divide by 2 (which we must do in this problem).

0.8, 1.0, 2.7, 2.8, 3.1, 13.3

(2.7 + 2.8)/2

(5.5)/2 = 2.75

So, the median is 2.75.

Hopefully this helped, good luck!

Step-by-step explanation:

Arranging the numbers in an ascending order:

0.8 1.0 2.7 2.8 3.1 13.3

Median = (3rd value + 4th value) / 2

[tex] = \frac{2.7 + 2.8}{2} \\ = \frac{5.5}{2} \\ = 2.75[/tex]

What is the length of the ladder? it’s 6 ft. from the house at the bottom and touches the wall 14 ft. up at the top.

Answers

Answer:

approx. 15.23

Step-by-step explanation:

6^2+14^2=c^2

What is the rectangular form of r = −2 sin(θ)?

Answers

Answer:

D.) x2 + (y + 1)2 = 1

Step-by-step explanation:

No explanation needed just need to say something here.

Answer:

x2 + (y + 1)2 = 1

Step-by-step explanation:

could someone give me answers for these three? no wrong answer or spam or link

Answers

Answer:

Equation: 2x + 13 = 5x - 20

x = 11

<FDG = 35

Step-by-step explanation:

These are vertical angles so they're equal to each other:

2x + 13 = 5x - 20

2x - 5x = -20 - 13

-3x = -33

x = 11

<FDG:

5x - 20

5(11) - 20

55 - 20

35

Someone plz answer this plz

Answers

4x+1=6x-29

vvvvvvvvvv

-2x=-30

x=-15

4 x -15= -60

angle 3 =59 degrees

angle 6= 119 degrees

PLZ HELP ASAP NO LINKS!!!

Line A is perpendicular to Line B.
If the slope of Line A is - 3/4, what is the slope of Line B?

?/?

Answers

Answer:

4/3

Step-by-step explanation:

The answer, when perpendicular, is always the reciprocal

The lifespans of meerkats in a particular zoo are normally distributed. The average meerkat lives 10.410.410, point, 4 years; the standard deviation is 1.91.91, point, 9 years.

Use the empirical rule (68-95-99.7\%)(68−95−99.7%)left parenthesis, 68, minus, 95, minus, 99, point, 7, percent, right parenthesis to estimate the probability of a meerkat living less than 16.116.116, point, 1 years.

Answers

Answer:

99.85%

Step-by-step explanation:

The lifespans of meerkats in a particular zoo are normally distributed. The average meerkat lives 10.4 years; the standard deviation is 1.9 years.

Use the empirical rule (68-95-99.7%) to estimate the probability of a meerkat living less than 16.1 years.

Solution:

The empirical rule states that for a normal distribution most of the data fall within three standard deviations (σ) of the mean (µ). That is  68% of the data falls within the first standard deviation (µ ± σ), 95% falls within the first two standard deviations (µ ± 2σ), and 99.7%  falls within the first three standard deviations (µ ± 3σ).

Therefore:

68% falls within (10.4 ± 1.9). 68% falls within 8.5 years to 12.3 years

95% falls within (10.4 ± 2*1.9). 95% falls within 6.6 years to 14.2 years

99.7% falls within (10.4 ± 3*1.9). 68% falls within 4.7 years to 16.1 years

Probability of a meerkat living less than 16.1 years = 100% - (100% - 99.7%)/2 = 100% - 0.15% = 99.85%

Answer:

13.5%

Step-by-step explanation:

Body mass index, of 20-year-old men is normally distributed with a mean of 23 and a standard deviation of 3.8. Twenty-year-old Allan's BMI has a z-score of 1.25. What is Allan's BMI?​

Answers

Answer:

Allan's BMI is 5.05

Step-by-step explanation:

Answer:

The correct answer is 27.75

Step-by-step explanation:

1.25•3.8+23 is the formula

1.25•3.8=4.75

4.75+23=27.75

So 27.75 is your answer

Select all the statements that are true about JKL and LMN.

Answers

Answer:

There is nothing here

Step-by-step explanation:

Answer:

Step-by-step explanation:

a , b & c

Pls help?!?!? With this

Answers

Answer:

7 buses. 52÷ 8 = 6.5 so rounding up to 7


I need help what’s the answer ?

Answers

Answer:

x = 30

Step-by-step explanation:

Using the sine ratio in the right triangle

sinx = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{2.5}{5}[/tex] = [tex]\frac{1}{2}[/tex] , then

x = [tex]sin^{-1}[/tex] ([tex]\frac{1}{2}[/tex] ) = 30

Originally, a department store bought a set of dishes at a cost of $57.68 and marked it up 125%. After a month, the set of dishes had not sold, so the store marked it down 50%. What was the discounted price?

Answers

Answer:

$64.89

Step-by-step explanation:

57.68 + 1.25 × 57.68

= 57.68 + 72.1

= 129.78

The original price was $129.78.

129.78 – 0.50 × 129.78

= 129.78 – 64.89

= 64.89

The discount price was $64.89.

Answer:

$64.89

Step-by-step explanation:

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