Given f(x)=2x+9, if f(x)=15, find x

Answers

Answer 1

Answer:

x = 3 I think

Step-by-step explanation:

h. mmm yess I think

Answer 2
Answer:
f(x)=39
Expiation:
f(x)=2x+9,f(x)=15 you substitute the x for the 15.
f(15)=2(15)+9
f(15)=30+9
f(15)=39

Related Questions

If you help I swear to god I will give brainliest!

Answers

Answer:

a. 45 b. 44  c. 30  d. 50 and e. 65

Step-by-step explanation:

divide. when you divide a fraction, flip it.  ex. 22 ÷ 1/2 would be 22× 2/1

Answer:

the first one is the answer is 45 miles , because 135 miles divided by 3 hours [180 minutes] equals to 0.75 , 180 minutes times 0.75 equals to 135 miles , 2 hours [120 minutes] times 0.75 equals to 90 miles and 1 hour [60minutes] times 0.75 equals to 45 miles.

Step-by-step explanation:

b. 44  c. 30  d. 50 and e. 65

The rectangular top of Kathleen's desk has a length of 24 inches and a width of 17 inches. What is the area of the top of Kathleen's desk in square inches?

Answers

Answer:

408 square inches

Step-by-step explanation:

The top of the desk is Rectangular.

The area of a rectangle = Length × Width

Length = 24 inches

Width = 17 inches

Area of the rectangular top = 24 inches × 17 inches

= 408 square inches

Therefore, the area of the top of Kathleen's desk in square inches is 408 square inches

A bacteria culture initially contains 2000 bacteria and doubles every half hour.


-Find the size of the bacterial population after 100 minutes.


-Find the size of the bacterial population after 10 hours.

Answers

Answer:

the size of the bacterial population after 100 minutes is 20,158.7 bacteria

the size of the bacterial population after  10 hours is 2097152000 bacteria

Step-by-step explanation:

Given that

The bacteria contains 2000

It would be double at every half hour

We need to find out the size of the bacteria after 100 minutes & 10 hours

So,

The size of the bacteria after 100 minutes is

= 2000 × 2^(100 ÷ 30)

= 2000 × 10.079

= 20,158.7 bacteria

Now the size of the bacteria after 10 hours is

10 hours = 10 × 60 minutes = 600 minutes

= 2000 × 2^(600 ÷ 30)

= 2097152000 bacteria

convert 3.34 as a fraction in its simplest form​

Answers

Answer:

3 17/50

Step-by-step explanation:

please help me on this question it is in the photo file

Answers

Answer:

390%

Step-by-step explanation:

We are given the mixed fraction:

3 9/10

Convert to improper fraction

39/10

Converting this to Percentage :

39/10 × 100

= 3900/10

= 390%

Therefore: 3 9/10 as a percentage = 390%

Can someone please help me asap extra brainly points !!!

Answers

56.52 yards should be the circumference

Answer:

56.52

Step-by-step explanation:

Circumeference Equation=2πr

What is the area of the figure?
A. 44 sq cm
B. 208 sq cm
C. 192 sq cm
D. 256 sq cm

Answers

Answer:

256

Step-by-step explanation:

Answer:

256 cm

Step-by-step explanation:

16 x 4 = 64

16 x 8 = 128

8 x 8 = 64

64 + 64 = 128  + 128 = 256

Which decimal is the equivalent of 6/11

Answers

Answer:

0.54

Step-by-step explanation:

PLEASE HELP WILL GIVE BRAINLY IF U HELP ME

Answers

Answer:

D

Step-by-step explanation:

PLEASE HELPPP

10. (07.04 LC)

If 8x = 48, then x =

Answers

Answer:

6

Step-by-step explanation:

48/8=6

divide each side by 8

Answer:

x = 6

Step-by-step explanation:

If you divide both sides of the equation by 8, then you end up with x = 6.

Write an equivelant expression using distributive property for these two inequalities
8(−x−12)


5. −8(−x−34y + 72)

Answers

Step-by-step explanation:

[tex]8( - x - 12) \\ - 8x - 12 \\ \\ \\ - 8( - x - 34y + 72) \\ 8x + 272y + 576[/tex]

I hope that is useful for you :)

Find the greatest common factor of these three expressions.
20w, 8w, and 28w?

Answers

Answer:

4w.

Step-by-step explanation:

find the surface area! correct gets brainliest!

Answers

Answer:

where is the picture i cant see anything except find the surface area! correct gets brainliest!

Step-by-step explanation:

What was first the fruit orange or the color orange
And how did the first people kill an animal with what
If a bow then where did they get the string from

Answers

Answer:

The orange (fruit) definitely got named first.

In ancient time, people hunt animals with old hunt tools. We can see some examples of old hunting tools.

And if they used bow, then I think they made string from raw materials like tree's branded peels.

Step-by-step explanation:

Write 3.5 • 4 using words

Answers

Answer:

I dont understand if you wanted the answer or just the equation, so I did both.

Three-point five times four

Three-point five times four equals fourteen.

Fourteen

Hope that helps!

If it did, plz mark brainiest, im trying to level up :3

Have a great day!

The volume of a cone is 8003π cubic yards. The height is 8 yards. Find the radius

Answers

Question:-

The volume of a cone is 8003π cubic yards. The height is 8 yards. Find the radius.

Solution:-

Height (h) of a cone is 8 yards. (Given)

We have to find the radius (r) of a cone.

Now,

ATQ ,

[tex] \frac{1}{3} [/tex]πr²h = 8003π

[tex] \frac{1}{3} [/tex]r²h = 8003 [ ' π ' is cancelled from both sides ]

[tex] \frac{1}{3} [/tex]r² × 8 = 8003

r² = [tex] \frac{8003 \: × \: 3}{8} [/tex]

r² = [tex] \frac{24,009}{8} [/tex]

r² = 3001.125

r = [tex]\sqrt{3001.125}[/tex]

r = 54.78

The radius of a cone is 54.78 yards. [Answer]

what is the prime factorization of 693​

Answers

Answer:

The prime factors of 693 are 3, 7, 11.

Hope this helps!

The prime factorization of 693 can be written as [tex]3^2 * 7^1 *11^1[/tex] where 3, 7, 11 are prime numbers.

What is Prime Factorization?

In prime factorization, a number is expressed as a product of its prime factors. A prime number is a number which has exactly two factors, 1 and the number itself.

The process in which we write a number as the product of prime numbers is prime factorization. Prime numbers are the numbers that have only two factors, 1 and the number itself. For example, 2, 3, 5, 7, 11, 13, 17, 19, and so on are prime numbers.

For above given examples,

The prime factorization of 693 can be written as [tex]3^2 * 7^1 *11^1[/tex] . In this case 3, 7, 11 are prime numbers.

Thus, the prime factorization of 693 can be written as [tex]3^2 * 7^1 *11^1[/tex] where 3, 7, 11 are prime numbers.

Learn more about Prime Factorization, here:

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1) 15 = 5(x +2 ) 2) 5n + 34 = -2(1-7n)

n=
x=

Ill mark brainliest if yall help me and ill make it 20 points

Answers

1) 15 = 5(x + 2)
15 = 5x + 10
15 - 10 = 5x + 10 - 10
5 = 5x
5/5 = 5x/5
1 = x

2) 5n + 34 = -21(1-7n)
5n + 34 = -21 + 147n
5n + 34 = -21 + 147n
5n - 147n + 34 = -21 + 147n - 147n
-142n + 34 = -21
-142n + 34 - 34 = -21 - 34
-142n = -55
-142n/-142 = -55/-142
n = 55/142

Whoever answers correctly without adding NO FILES OR LINKS gets brainliest

Answers

Answer:

C. 6.75n = 114.75

Step-by-step explanation:

The store collects $114.75, each magazine is 6.75, the number of magazines is shown by n.

Answer: The answer is A.

It is A because you have to divide the total by the cost to find out the amount of magazines purchased.

Mount Ojos del salado is the highest mountain in Chile, with a peak at about 6900 meters above sea level. The Atacama Trench, just off the coast of Chile, is about 8100 meters below sea level (at its lowest point). what is the difference in elevations between mount ojos del salado and the atacama trench?

Answers

Answer: 15,000 meters

Step-by-step explanation:

When measuring the difference in elevations between a body that is above sea level and one that is below, you simply take the distances of the bodies above and below sea level and add it up.

From sea level to Mount Ojos is 6,900 meters. Atacama trench is 8,100 meters below. From the peak of Mount Ojos to sea level is 6,900 meters. Then add the distance from sea level to Atacama to find the difference in elevations.

= 6,900 + 8,100

= 15,000 meters

Answer:

15,000 Meters

Step-by-step explanation:

23x+67= 90
solve
free

Answers

Answer:

x=1

Step-by-step explanation:

23x+67=90

23x=23

x=1

Answer:

x=1

hope this helps

have a good day :)

Step-by-step explanation:

3/4 + (-1/2) + (-2/3) explain me

Answers

Answer:

Remove the parentheses, use LCM (least common multiplier), adjust fractions based on the LCM, since denominators are equal, combine the fractions, subtract. Your answer would be: -5/12.

Step-by-step explanation:

Steps to the words I said but in fraction step:

3/4 + (-1/2) + (-2/3)

3/4 - 1/2 - 2/3

9/12 - 6/12 - 8/12

9-6-8/12

-5/12

ASAP!!! PLEASE HELP ILL GIVE U BRAINEST!
Find the LENGTH of Arc AB.

Answers

HERE I FOUND IT

Find the LENGTH of Arc AB.

WILL GIVE BRAINILEST!! 1. Al and Viola Speer were granted an $80,000 mortgage.
At the closing, they will have to pay the closings costs
shown plus real estate taxes of $1,230. What are the
total costs?

Answers

Answer:

81230

Step-by-step explanation:

The total cost for the mortgage and the real estate taxes is $81230.

What is a mortgage?

A mortgage is an agreement between an individual and an owner of a property that provides the owner the right to repossess your property if you fail to repay the loan plus interest at the agreed time.

Mortgage loans are used to purchase a property or to take loans upon the value of an existing home you already own.

From the information given:

Al and Viola Speer were granted an $80,000 mortgage.The real estate taxes on the mortgage = $1,230

Therefore, the total cost required by Al and Viola to pay for the mortgage is:

= $80000 + $1,230

= $81230

Learn more about mortgage here:

https://brainly.com/question/22598793

Solve -3y(y-8)(2y+1)=0

Answers

Answer: I think it's 0

Determine whether or not the triangle with the given side lengths is a right triangle.

51 feet, 14 feet, 49 feet

explain your reasonings

Answers

I believe it is not a tight trying because as I was taught, A+B=C & C-A=B which does not work out in this case.

PLease help!!
The last screen shot is the fourth option!!

Answers

Answer:

the answer is A

money spent on shirts 5*15=75

money spent on pants 4*10=40

total money 40+75=m

T, U, and V are
collinear. Suppose
U is between T and
V and that the
following is true:
TU = 7x - 4,
UV = 6x + 10, and
TV = 45.
Find TU.

Answers

Lilac linear switches help create a thicker noise TRUE TU

The value of TU is 17.

Here,

T, U, and V are collinear.

U is between T and V

TU = 7x - 4,

UV = 6x + 10, and

TV = 45.

We have to find TU.

What are collinear points?

Three or more points are said to be collinear if they are lie on a single straight line.

Now,

T, U, and V are collinear.

U is between T and V

TU = 7x - 4,

UV = 6x + 10, and

TV = 45.

Clearly, TU + UV = TV

After putting the given values we get;

TU + UV = TV

(7x - 4) + (6x + 10) = 45

13x + 6 = 45

13x = 45 - 6

13x = 39

x = 3

Hence, TU = 7x - 4 = 7 * 3 - 4 = 21 - 4 = 17

So, The value of TU is 17.

Learn more about the collinear points visit:

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NEED HELP ASAP!!!!! Someone help me??!??

Answers

Answer:

c

Step-by-step explanation:

I think so

In the diagram, x is a negative number and y is a positive number. Select the expression that is a positive.

Answer choices:
x(y)

x - y

y/x

y - x

Answers

Answer:

Option 4: y -x

Step-by-step explanation:

Option 1

Multiplying a positive and a negative number will result in a negative number.

For example, if x= -1 and y=5,

x(y)= -1(5)= -5 (a negative number)

Thus, option 1 is incorrect.

Option 2

In this option, we are essentially multiplying -1 to y, a positive number, before adding the result with x.

Since y is a positive number, -y is a negative number and hence x -y (when x is a negative number) will result in a negative number. Let's plug in values into x and y to check this.

For example, x= -2 and y=3.

x -y= -2 -3= -5

Option 2 is thus incorrect.

Option 3

Dividing a positive number with a negative number will result in a negative number.

For example: 6÷(-2)= -3

Option 3 is also incorrect.

Option 4

Subtracting a negative number from a positive number will result in a positive number.

For example: x= -1, y= 8

y -x= 8 -(-1)= 8 +1= 9

As seen from the example above, when the negative number is multiplied to negative 1, a positive sign results.

In summary, when a positive number is multiplied to a positive number, the resulting number is positive.

When a negative number is multiplied to a negative number, the resulting number is positive.

When a positive number is multiplied to a negative number, the resulting number is negative.

+(+)= +

-(-)= +

+(-)= -

This applies to division too.

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