,
If x=y and y = 18, what is the value of 2x-3?
3
A) 21
B) 15
C) 12
D) 10

Answers

Answer 1

Answer:

33. 2x18-3. 36-3=33 the answer is 33


Related Questions

is 33 prime or composite Explain​

Answers

33 is composite because it has more than two factors.

Answer:

33 is composite

Step-by-step explanation:Because its factors are 1, 3, 11, 33

marry christmas even tho are parents lied to us and hes not real

Answers

Answer:

Merry christmas, and he is real

Step-by-step explanation:

Answer:

oop lol MERRY CHRISTMAS!!!! Also cute picture :)

HAPPY HOLIDAYS!

Send virtural hugs*

16) The expression 100 + 5n can be used to find the total price for students to take a field trip to the
science museum. If n represents the number of students, determine the cost for 120 students(n) to
Visit the science museum.
A. $225
B.$105
C. $600
D. $700

Answers

The answer to this question is D

The half-life of cesium-137 is 30 years. Suppose we have a 20 mg sample.

a. Find the mass (in mg) that remains after t years.
b. How much of the sample (in mg) remains after 20 years?
c. After how long will only 1 mg remain?

Answers

Answer:

(a) A = (20mg)/(2^(t/30))

(b) 12.6mg

(c) 129.6years

Step-by-step explanation:

To calculate the amount remaining after a number of half-lives, n, we can make use of:

[tex]A = \frac{B}{2^n}[/tex]

Where A = amount remaining

B = initial amount

[tex]n = \frac{t}{t_{0.5}}[/tex]

(a) A = (20mg)/(2^(t/30))

(b) Mass after 20years

A = (20mg)/(2^(20/30)) ≈ 12.6mg

(c) After how long will only 1mg remain:

1mg = (20mg)/(2^(t/30))

[tex]20mg = {2^{\frac{t}{30}}[/tex]

Taking log of both sides we have:

Log(20) = (t/30)log(2)

t/30 = (log(20))/(log(2)) ≈ 4.3

t/30 = 4.3

t = 30 x 4.3 ≈ 129.6years.

The crew of a garbage truck takes 5 hours to empty all the bins in one neighborhood on pickup day. The city assigned a second garbage truck to this neighborhood. During their training, it took the crew from the second truck 8 hours to empty all the bins.

Answers

Answer:62%    Step-by-step explanation:

What is 1/32 as a decimal

Answers

Answer:

0.03125

Hope this helps! :)

0.03125 is the answer :) hope it helped

Need help Pronto! Will give braintliest.

Answers

Answer:

b

Step-by-step explanation:

i’m pretty sure it’s B, but i’m not 100% sure, sorry if it’s wrong :(

please help me asap​

Answers

Answer:

Not sure what number sense is, but 3 is the answer.

Step-by-step explanation:

Answer:

the answer would be 3.

Step-by-step explanation:

5 times 3 is 15 plus 40 is 55. Hope this helps!!! Please let me know if i'm right!!!

A scientist started with a culture of 10 bacteria in a dish. The number of bacteria at the end of each successive minute increased exponentially, so that the number at the end of one hour was 500. How many hours (to the nearest hour) from the start of the experiment passed before there were 1,000,000 bacteria?

Answers

Answer: 3 hours

Step-by-step explanation: Exponential growth is a model showing a specific quantity increasing over time.

The formula for it is [tex]y(t)=A_{0}e^{kt}[/tex]

in which

y(t) is the quantity after time t

A₀ is initial value

k is rate of growth

t is time

To determine how much time has passed, first find the rate of growth and knowing that 1 hour has 60 minutes:

[tex]500=10e^{60k}[/tex]

[tex]e^{60k}=50[/tex]

[tex]60k=ln(50)[/tex]

k = 0.065

With the rate, determine the time

[tex]10^{6}=10e^{0.065t}[/tex]

[tex]e^{0.065}=10^{5}[/tex]

[tex]0.065t=5ln(10)[/tex]

t = 177.12 minutes

The amount of hours passed is

[tex]t=\frac{177.123}{60}[/tex]

t = 3

From the start of the experiment, it has passed 3 hours before there were 1,000,000 bacterias.

Now I need thissss pls

Answers

I think it’s 25 because 65 + 90 is 155 + 25 is 180

PLEASE HELP ME ILL GIVE 5 STARS ASAP PLEASE
Ron drew a scale drawing of a neighborhood park. The scale he used was 1 centimeter: 2 meters. The actual width of the volleyball court is 8 meters. How wide is the volleyball court in the drawing?


Answer

Answers

16 wide

Step-by-step explanation:

because i do 8 x 2

Answer: 4 cm will equal the width of the volleyball court on the scale drawing

Step-by-step explanation:

1cm = 2m

8m/2m =4 cm

Please help me solve this question will give you braisnlt !

Answers

Answer:

t = 54m + 160

Step-by-step explanation:

Input = m

Output = t

Equation of the function in slope-intercept form, is represented as t = km + b

Where,

k = slope/rate of change

b = y-intercept

Using two pairs, say, (2, 268) and (3, 322):

[tex] slope(j) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{322 - 268}{3 - 2} = \frac{54}{1} = 54 [/tex]

k = 54

Find b, by substituting m = 2, t = 268, and k = 54 into t = km + b.

Thus:

268 = (54)(2) + b

268 = 108 + b

268 - 108 = b (subtraction property of equality)

160 = b

b = 160

To find the equation of the function, substitute k = 54, and b = 160 into t = km + b.

Thus:

t = 54m + 160

Choose the equation that represents the asymptote of the graph f(x) = 2^x +3.

y = 0
y = 3
x = 0
x = 3​

Answers

Answer:

x = 0

Step-by-step explanation:

The horizontal asymptote occurs at x = 0, Hence the equation that represents the asymptote of the graph is at x = 0

f(x) = 2^x +3.

0 = 2^x +3.

2^x +3. = 0

2^x = -3

log 2^ x = log(-3)

x log2 = log(-3)

x = log(-3)/log 2

Hence the required function is when x = 0

Consider the system of linear equations below.

3x + y = -4
--5x + y = 8
Graph on a graph paper and
Describe the graph
A) they are parallel
B) the concide
C) they intersect

Answers

It’s c ;) just trust and believe in de ways of de math wiz

A triangle on a sphere could have
degrees.

Answers

Answer:
True

Explanation:

I need help please and thank you 50 points and brain thing

Answers

Answer:

this is all correct btw love u baby

Step-by-step explanation:

               a                            b                              c            

<A          opposite            adjacent                     hypoth

<B          adjacent              opposite                    hypoth

What is 218,742 rounded to the nearest hundred thousand?

Answers

Answer:

200,000

Step-by-step explanation:

its easy and simple lol

Answer:219,000

Step-by-step explanation: 7 is higher than 5 so you round it positively :)

Are the equation linear or nonlinear?​

Answers

Answer:

Results below

Step-by-step explanation:

Equation of the line

A straight line can be written in the form:

y = ax + b

Where a and b are constants and x is the independent variable.

The essential condition for an equation to be linear is that the x must be powered to the exponent 1, which is usually not written.

From the equations presented in the table:

[tex]y = x^1+2[/tex] is linear because the exponent of the x is 1

y = 5(x+2) = 5x + 10 is linear with a=5 and b=10.

y = x is linear with a=1 and b=0

[tex]y = x^2+1[/tex] is not linear because the exponent of x is 2

[tex]y = x(x) = x^2[/tex] is not linear because the exponent of x is 2

The table below summarizes the results

2. Sandra plans to swim a total of 2 2/3 miles every week for 2 1/5
weeks. How many miles is Sandra planning on swimming?

Answers

Answer:

5 13/15 miles

Step-by-step explanation:

There are 3 green marbles and 15 blue marbles in a bag. What is the ratio of green marbles to total number of marbles?

Select all the equivalent ratios that represent this relationship.


3:15

1:6

2:12

1:5

3:18

2:10

Answers

Answer:

3:15

1:5

Step-by-step explanation:

Answer:

3:15 and 1:5

Step-by-step explanation:

Hope this helped ^^✨

A model of a telescope has a height of 15 inches and and a diameter of 3.5 inches. If the actual diameter is 10 inches, find its actual height.

Answers

Answer:

The actual height of telescope is 42.85 inches

Step-by-step explanation:

Given that:

Height of model of telescope = 15 inches

Diameter of model of telescope = 3.5 inches

Actual diameter of telescope = 10 inches

Actual height of telescope = x

Ratio of model's diameter to height :: Ratio of actual diameter to height

3.5 : 15 :: 10 : x

Product of extreme = Product of mean

3.5*x = 10*15

3.5x=150

Dividing both sides by 3.5

[tex]\frac{3.5x}{3.5}=\frac{150}{3.5}\\x=42.85[/tex]

Hence,

The actual height of telescope is 42.85 inches

Which relation below represents a one-to-one function? A 2-column table has 5 rows. The first column is labeled x with entries 5, 14, 7, 13, 12. The second column is labeled f (x) with entries 26, 197, 50, 170, 197. A 2-column table has 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is labeled f (x) with entries 5, 2, 1, 2, 5. A 2-column table has 5 rows. The first column is labeled x with entries 7.25, 7.5, 7.75, 8, 8.5. The second column is labeled f (x) with entries 11, 13, 15, 13, 11. A 2-column table has 5 rows. The first column is labeled x with entries 9, 2, 4, 1, 5. The second column is labeled f (x) with entries 12, 7, 9, 13, 5.

Answers

Answer:

D is the correct answer actually

Step-by-step explanation:

just took the unit review

Answer:

d

Step-by-step explanation:

The baby giraffe weighed 185 pounds at birth. He gained weight at a steady rate for the first 9 months until his weight reached 644 pounds. How much did he gain each month? Write an equation and solve.

Answers

Answer:71.56

Step-by-step explanation:

71 56 dhdjsksbsvsvsbssnsbdb

Identify the common difference of the sequence: –8, –1, 6, 13

Answers

Using arithmetic sequence concepts, it is found that the common difference of the sequence is of -7.

Arithmetic sequence:In an arithmetic sequence, the difference between consecutive terms is always the same, and it is called common difference.

In this problem, the sequence is: {-8, -1, 6, 13}

The difference between consecutive terms is:

[tex]13 - 6 = 6 - (-1) = -1 - (-8) = 7[/tex]

Hence, the common difference of the sequence is of -7.

You can learn more about arithmetic sequence at https://brainly.com/question/6561461

A florist has ordered 632 roses for Valentine's Day. If the roses are divided into 50 bouquets, how many roses will each bouquet
have, and how many roses will be left over?

Answers

each bouquet will have 12 roses. 32 roses will be left over

Answer:

I believe each bouquet of roses will have 12 roses, and 32 roses will be left.

y=5x-1
2x+y=13 how to solve​

Answers

Answer:

x = 2, y = 9 or (2,9)

Step-by-step explanation:

Hello!

The first equation "y = 5x - 1" is telling us that y is equal to 5x - 1

We can plug in the first equation into the second like this:

2x + y = 13 (we know y so we can plug it in)

2x + (5x - 1) = 13

2x + 5x - 1 = 13

7x - 1 = 13

Now we add 1 to both sides

7x - 1 + 1 = 13 + 1

7x = 14

x = 2

Now we plug in x to find y:

y = 5x - 1

y = 5(2) - 1

y = 10 - 1

y = 9

image to help also needed asap :/

Answers

Answer:

Its c/2

Step-by-step explanation:

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣿⣧⠀⠀⠀⢰⡿⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⡟⡆⠀⠀⣿⡇⢻⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⠀⣿⠀⢰⣿⡇⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⡄⢸⠀⢸⣿⡇⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⣿⡇⢸⡄⠸⣿⡇⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢿⣿⢸⡅⠀⣿⢠⡏⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⣿⣿⣥⣾⣿⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿⣿⣿⣿⣿⣿⣆⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⣿⣿⡿⡿⣿⣿⡿⡅⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⠉⠀⠉⡙⢔⠛⣟⢋⠦⢵⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣾⣄⠀⠀⠁⣿⣯⡥⠃⠀⢳⠀⠀⠀Big Chungus⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣴⣿⡇⠀⠀⠀⠐⠠⠊⢀⠀⢸⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⢀⣴⣿⣿⣿⡿⠀⠀⠀⠀⠀⠈⠁⠀⠀⠘⣿⣄⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⣠⣿⣿⣿⣿⣿⡟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⣿⣷⡀⠀⠀⠀

⠀⠀⠀⠀⣾⣿⣿⣿⣿⣿⠋⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⣿⣿⣧⠀⠀

⠀⠀⠀⡜⣭⠤⢍⣿⡟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⢛⢭⣗⠀

⠀⠀⠀⠁⠈⠀⠀⣀⠝⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠄⠠⠀⠀⠰⡅

⠀⠀⠀⢀⠀⠀⡀⠡⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠁⠔⠠⡕⠀

⠀⠀⠀⠀⣿⣷⣶⠒⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢰⠀⠀⠀⠀

⠀⠀⠀⠀⠘⣿⣿⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠰⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠈⢿⣿⣦⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⠊⠉⢆⠀⠀⠀⠀

⠀⢀⠤⠀⠀⢤⣤⣽⣿⣿⣦⣀⢀⡠⢤⡤⠄⠀⠒⠀⠁⠀⠀⠀⢘⠔⠀⠀⠀⠀

⠀⠀⠀⡐⠈⠁⠈⠛⣛⠿⠟⠑⠈⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠉⠑⠒⠀⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

What expression is equivalent to 12y + (7y)(3)

Answers

Answer:

I got 33y

Step-by-step explanation:

hi if its right but here

Answer:

57y

Step-by-step explanation:

PLZ HELP WILL GIVE BRAINLIEST

Answers

Answer:

A) C=6t

Step-by-step explanation:

C=6t is the a answer

Write the ratio as a fraction in lowest term: 15 to 36​

Answers

Answer:

5/12

Step-by-step explanation:

15 to 36 can also be written as 15/36.

Divide by common values to simplify.

15÷3/36÷3

5/12

Best of Luck!

Other Questions
what orbital represents the transition metals? Quin es la seora que no es ni vieja ni canosa? Tiene el pelo largo y marrn y tiene un hijo con pelo marrn y una hija pelirroja.O Tina MollyClair can someone please help me ASAP Answer this please i need help A shopkeeper buys 10 television sets from a retailer at a rate of Euro 15,000 per set. He sells half of them at a profit of 25 % and rest half at a loss of 20%. Find the overall profit/loss faced by the shopkeeper. Tacos or burritos? i like tacos better A company's managers have decided to issue bonds to raise financial capital. What is the first step in this process? A. Selling the bonds to investors B. Contacting a financial advisory firm C. Filing documents with the SEC D. Determining the firm's creditworthiness E. Preparing documentation Can someone answer 3for me please? How did electricity change where factories were located PLEASE ANSER ASAP WILL GIVE BRAINLIEST IF GOTTEN RIGHT When is it important to know the precise meanings of all scientific terms in an article?a.) when you are reading just to pass the timeb.) when you plan to become an expert on the topicc.) when you want to satisfy your curiosityd.) when you need to answer a research question Which excerpts from the story best support theanswer in Part A?Select the two correct answers.i couldnt find the answer :( Plssss help plsssssss . Which of the following natural disasters is likely to cause the most widespread damage in a coastal ecosystem? 1. En el ao 2017 se realizar el primer torneo____de ftbol femenino en Mxico.2. En cada club de la liga, al menos dos jugadoras deben ser____.3. Inicialmente, todas las____deben ser mexicanas.4. Para la operacin____de la liga, se requieren los aportes de todos los clubes.5. En el ao 2014, la FIFA realiz un_____sobre el ftbol femenino.6. El primer torneo de ftbol femenino mexicano comenzar en______de 2017. What is the name of the piece above? hey guys need help again -4/5 divided by 1/3 Hiking The scatter plot shows a hiker's elevation above sea level during a hikefrom the base to the top of a mountain. The equation of a trend line for thehiker's elevation is y = 7.81x + 672, where x represents the number of minutesand y represents the hiker's elevation in feet. Use the equation of the trend lineto estimate the hiker's elevation after 155 minutes.Please help Im so tired Determine which of the mapping diagrams represents a relation that is not a function. A. A mapping diagram with negative 5 pointing to negative 4 and 3; negative 1 pointing to 5; 7 pointing to 8. B. A mapping diagram with negative 4 pointing to negative 5; 3 pointing to negative 5; 5 pointing to negative 1; 8 pointing to 7. C. A mapping diagram with negative 4 pointing to negative 9; 3 pointing to negative 5; 5 pointing to negative 1; 8 pointing to 7. D. A mapping diagram with negative 5 pointing to negative 1; negative 1 pointing to negative 1; 7 pointing to negative 1. I NEED HELP ASAP PLZZZZZZZZ 20 POINTS AND BRAINLYA chemistry teacher needs to make a 42% sulphuric acid solution. The acid solutions available are 4 liters of 30% sulphuric acid and 50% sulphuric acid, by volume. How many liters of the 50% sulphuric acid solution must be mixed with the 4 liters in order to make the 42% sulphuric acid solution?