An online music club sells compact discs for $13.95 each plus $1.95 shipping and handling per order. If Maria’s total bill was $85.65, how many compact discs did Maria purchase?

Answer:

51

Step-by-step explanation:

Order of Operations: BPEMDAS

Step 1: Write out equation

2p² + 3s

Step 2: Define variables

p = 3

s = 11

Step 3: Replace variables

2(3)² + 3(11)

Step 4: Evaluate

2(9) + 33

18 + 33

51

Answer:

[tex]-\frac{1}{12}[/tex]

Step-by-step explanation:

So we have the expression:

[tex]\frac{2}{6}-\frac{5}{12}[/tex]

To subtract, we want to have a common denominator. So, let's find a common denominator by using the LCM.

The LCM of 6 and 12 is 12.

Since the second term is already 12, let's multiply the first term by 2 to get its denominator to be 12:

[tex]=(\frac{2}{2})\frac{2}{6}-\frac{5}{12}[/tex]

Multiply:

[tex]=\frac{4}{12}-\frac{5}{12}[/tex]

Now, we can combine the fractions:

[tex]=\frac{4-5}{12}[/tex]

Subtract:

[tex]=\frac{-1}{12}[/tex]

And we are done!

Answer:

Step-by-step explanation:

[tex] \frac{x}{3} = \frac{2x + 3}{7} [/tex]

Cross multiply

That's

7x = 3( 2x + 3)

Multiply the terms

That's

7x = 6x + 9

Subtract 6x from both sides

We have

7x - 6x = 6x - 6x + 9

Simplify

We have the final answer as

Hope this helps you

Answer:

[tex]h = \frac{2A}{b +B } [/tex]

Height= 16 feet

Step-by-step explanation:

Please see attached picture for full solution.

Answer:

f (4) = 3(4) - 12

Step-by-step explanation:

if x = 4 just substitute the x for the 4 .

f(x) = 3x - 12

f(4) = 3 (4) - 12

f(4) = 12 - 12

and that cancels itself out.

Answer:

let common ratio between them be x

So, 5x,3x

5x-3x=18

2x=18

2x/2=18/2

x=9

Step-by-step explanation:

I hope it helps you☺️

If yes, do mark my answer as brainliest

Answer:

8 to the power of 8 is 16777216. 3 to the power of 3 is 27. 3 is the boots value. i think.

Step-by-step explanation:

Answer:

step by step

Step-by-step explanation:

the answer is 7

Answer:

2043

Step-by-step explanation:

you divide 20430 by 10 and you get your answer

Answer:

Kindly check explanation and attached picture

Step-by-step explanation:

Given that:

A football team lost 5 yards on each of 3 plays

Using a number line we could show the loss in yard after each play. With a loss of 5 yards after each play, there will be a total of:

(Number of plays * yards lost) = (3 * 5) = 15 yards

The attached picture shows a number line moving a distance of 5 yards to the left ( negative direction) after each play after which it arrives at a total loss of 15 yards after the third play.

Answer:

The best measure of center is median = 37.50.

Step-by-step explanation:

The complete question is:

The data set gives the number of bottles filled by each of the workers in a bottling plant in one day.

{36, 18, 16, 28, 68, 35, 37, 66, 38, 40, 41, 44, 72, 29}

The best measure of center for this data set is the , and its value expressed up to one decimal place is?

Solution:

The three measures of center are:

The mean is the average value of the data set and uses all the values of the data set.

The median is the middle value of the data set.

Mode is the value of the data st with the highest frequency or number of occurrence.

Compute the mean, median and mode of the data set provided as follows:

[tex]\text{Mean}=\frac{1}{n}\sum X=\frac{1}{14}\times [36+18+....+72+29]=40.57[/tex]

So, the mean is 40.57.

The data set in ascending order is:

{16 , 18 , 28 , 29 , 35 , 36 , 37 , 38 , 40 , 41 , 44 , 66 , 68 , 72}

There are 14 values in the data set. That is an even data set.

The median for an even data set is the average of the middle two values.

The middle two values are: 37 , 38

Average of {37 , 38} = [tex]\frac{37+38}{2}=37.50[/tex]

So, the median is 37.50.

None of the values are repeating itself. Thus, the data does not have a mode.

For the provided data:

Mean > Median

Implying that the data set is right-skewed.

For a skewed distribution or data set the median is the measure of center.

Thus, the best measure of center is median = 37.50.

Answer:How much tip do you leave for $30?

Tip on $30

Subtotal 30.00

15% Tip 4.50

Total 34.50

Step-by-step explanation:

Answer:

Step-by-step explanation:

1st, 3rd and 4th are the choices

I think Mr. Han is around the 60 or 70 age.

I am really sorry that I couldn't answer this problem.  Try starting with 21 and multiply that by 3.  To check if you can do it, add 43 to the number you multiply 3 with.  Again, i am really sorry that i only wrote a hint.  Good luck finding the answer!

Now the age of Mr. Han will be 54 years old.

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

Let x be the age of Mr. Han and y be the age of Alice.

She found that Han is 36 years older than her. Then the equation will be

x = y + 36     ...1

7 years later, Han will be 3 times as old as her. Then the equation will be

(x + 7) = 3(y + 7)

x = 3y + 14   ...2

From equations 1 and 2, we have

3y + 14 = y + 36

2y = 22

y = 11

Then the value of x will be

x = 11 + 36

x = 47

The age of Mr. Han will be

⇒ 47 + 7

⇒ 54

Now the age of Mr. Han will be 54 years old.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ2

Answer:

1/12

Step-by-step explanation:

Answer:

1/12

Step-by-step explanation:

I got the question purposely wrong so I could see the right answer

Answer:

-9x+27

Step-by-step explanation:

Answer: i got 0 i dunno if my math wrong sorry if wrong

Step-by-step explanation:

Answer:

- 0.12!

Step-by-step explanation:

hope this helps i worked it out l, so if its wrong please tell me! ㋛︎

Answer:

-4,22

Step-by-step explanation:

x = 8, y = 6, m = 3, p = -1 , n = 1

4x – 2m6. 5y + 8p

4 x 8 - 2 x 3 x 6

32- 2 x 3 x 6

32-36

-4

5 x 6 + 8 x -1

30 + 8 x (-1)

30-8

22

Answer:

Equation: 810= (90 + 24y)

y = 30 hours

Step-by-step explanation:

Given:

Site visit = $45 per site

cost per hour worked = $24

for each work site, the total amount of money earned

= site visit fee + cost for working

But the question mentions TWO sites, hence there will be two site visits. Therefore for TWO sites, we have to account for TWO site visit fee.

Therefore for TWO sites, the total amount of money earned

= site 1 visit fee + site 2 visit fee + cost for working

= (2 x site visit fee) +  cost for working  ------ Equation 1

We are further given that we worked y hours at the hourly work rate of $24 per hour.

Hence the cost for working

= y hours x hourly rate

= y   x   $24

= $24y   (substituting this into equation 1 above)

for TWO sites, the total amount of money earned

= (2 x site visit fee) +  cost for working

= (2 x $45) +  $24y

= $90 + $24y

= $(90 + 24y)

We are also given that we have to earn $810 for two sites, hence

810 = 90 + 24y    

810 - 90 = 24y

24y = 720

y = 720/24

y = 30 hours

Stu had quite a collection of baseball cards. One day he decided to give half of them to his brother Seth. Then he gave one-third of what he had left to a friend. Then he gave half of what was left to another friend. Stu now has 50 baseball cards. How many did he start with? It seems that I should work

let Stu have x cards

he gave half to seth

so he had x/2 cards

He had x/2 he gave 1/3 of x/2 to a friend

=x/6.

Now he had x/2 - x/6 = x/3 with him balance

1/2 of x/3 he gave to another friend =x/6

Balance he had was x/3 - x/6 = x/6

x/6 = 50

multiply by 6

x= 300

Answer:

Now he had x/2 - x/6 = x/3 with him balance

1/2 of x/3 he gave to another friend =x/6

Balance he had was x/3 - x/6 = x/6

x/6 = 50

multiply by 6

x= 300

Step-by-step explanation:

Answer:

The number of peanuts that will be needed to make all the sandwiches a child will eat by graduation  is approximately 141,667 peanuts

Step-by-step explanation:

The number of peanut butter sandwiches that an average American child will eat by the time she graduates from high school = 1500 peanut butter sandwiches

The number of sandwich taken every four days = 1 sandwich

The number of peanuts required to make 18-oz jar of peanut butter = 850 peanuts

The amount of peanut butter in an average sandwich = Two ounces

Therefore, we have by the time of graduation;

Each American child will have taken 1500 sandwiches

The 1500 sandwiches will have = 1500 × 2 ounce = 3,000 ounces of peanut butter

The number of 18-oz jars of peanut butter that will contain up to 3000-oz of peanut butter = 3000-oz/(18-oz) = 166.67 Jars

The number of peanuts required to make the 166.67 Jars of peanut butter = 850 peanuts/jar ×  166.67 Jars = 141666.67 ≈ 141,667 peanuts

The number of peanuts that will be needed to make all the sandwiches a child will eat by graduation  ≈ 141,667 peanuts.

Answer:

i believe it’s C 80 %sure

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

Given the 2 equations

2x - y = 11 → (1)

x + 3y = - 5 → (2)

Multiply (1) by 3 and add to (2) to eliminate the y- term

6x - 3y = 33 → (3)

Add (2) and (3) term by term to eliminate y, that is

7x = 28 ( divide both sides by 7 )

x = 4

Answer:

x-4

Step-by-step explanation:

Answer:

It is a hyperbole.

Step-by-step explanation:

5 v x - 6 = -20

v x = -14/5

v≠0 , x = -14/(5 v)

v = -14/(5 x)

Answer:

B. C. D are true, A. is false

Step-by-step explanation:

The question is attached

=======================

Answer options:

A. Players at school 1 typically spent more time in the weight room than players at school 2

B. The middle half of the data for school 1 has more variability than the middle half of the data for school 2

C. The median hours spent in the weight room for school 1 is less than the median for school 2 and the interquartile ranges for both schools are equal

D. The total number of hours spent in the weight room for players at school 2 is greater than the total number of hours for players at school 1