Cassandra works at a bookstore. Yesterday, she sold 18 hardcover books. The rest of the books she sold were paperback books. She sold a total of 41 books. How many paperback books did she sell?

Use the variable p to represent the number of paperback books Cassandra sold yesterday.

Which equation represents this situation and its solution?


A) p + 18 = 41; p = 23

B) 41p = 18; p = 23

C) p + 41 = 18; p = 23

D) 18p = 41; p = 23


PLEASE HELP!!!

Answer:

14,20.84,12,110,124.32

Since the room temperature is 22 degrees Celsius,

[tex]\frac{dT}{dt}=k(T-22)[/tex]

Solving the differential equation,

[tex]\frac{1}{T-22} dT=k dt \\ \\ \int \frac{1}{T-22} dT=\int k dt \\ \\ \ln|T-22|=kt+C[/tex]

When t=0, the temperature is 100 degrees.

[tex]\ln 78=C \\ \\ \implies \ln|T-22|=kt+\ln 78[/tex]

When t=1, the temperature is 80 degrees.

[tex]\ln 58=k+\ln 78 \implies k=\ln(29/39) \\ \\ \implies \ln|T-22|=t \ln(29/39)+\ln 78[/tex]

Setting t=4,

[tex]\ln|T-22|=4\ln(29/39)+\ln 78 \\ \\ T=22+e^{4\ln(29/39)+\ln 78} \approx \boxed{46}[/tex]

Answer:

what

Step-by-step explanation:

Step-by-step explanation:

the answer is 2.50+1.50+733=737

Answer:

Line r

Step-by-step explanation:

I took the Test

Answer:

here I am again

60 gallons

Step-by-step explanation:

Katie deleted my answer and I got warned

Answer:

52

Step-by-step explanation:

Answer:

68 yard

Step-by-step explanation:

just add the two numbers.              

Answer:

y = 5x + 8

Explanation:

The slope is 5, and the y intercept is 8 so following the format of the equation, the equation for this line is:

y = 5x + 8

Answer:

15:11

Step-by-step explanation:

well, girls to boys would be 15 to 11 because there are 15 girls and 11 boys. it cant be simplified further, so its 15:11

edit: I've noticed that it sounds like I'm saying girls is first because there are more, but it's because the question asks for girls to boys, not because there are more girls

Answer:

11:15

Step-by-step explanation:

Finding a ratio is very simple, all you have to do is take the first number, put a :, and then put the second number.

The : can also be replaced with a . or / so the answer to this question might also be seen as:

11/15

11.15

Answer:  (- 0.3636, - 0.2727)

Step-by-step explanation:

2x + y = - 1

3x - 4y = ​0

X= - 0.3636

Y=  - 0.2727

Answer:

I think yeah, triangle with this side are possible.

Answer:

I don think so they only have 3 sides so I think the answer is no

Step-by-step explanation:

please mark brainliest ☺♦

Step-by-step explanation:

5, 1.25,-2, -4.5

Greatest-Least

Answer:

a200

Step-by-step explanation:

Answer:

16 hrs

Step-by-step explanation:

per hour she gets 72.50 / 5 or 14.50

so t * 14.5 = 232

t  = 232 / 14.5

t = 16 hours

Answer: C

Step-by-step explanation: Good Luck

Answer:D

Step-by-step explanation:

12y-7=3

move the constant to the right

12y=3+7

calculate

12y=10

divide both sides

6y=5

GOODLUCK ;)

Answer:

u can use inspect element on the thing and itll show the answers

Step-by-step explanation:

Answer: it's 9.79 (approximately 10)

Step-by-step explanation:

Use pythagorean theorem

Answer:

y = 2/7x

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

Step 1: Define

Slope m = 2/7

y-intercept b = 0

Step 2: Write equation

Answer:

Mean between 164 and 166 is

Step-by-step explanation:

Mean between 164 and 166 is

Therefore, for 1 bag of chips, he used 4 bags of Cheetos.

Given that 1/2 bag of chips is used for every 2 bags of Cheetos.

Now we have to determine how many bags of Cheetos did he use if he used 1 bag of chips as

1/2 bag of chips  = 2 bags of Cheetos

1 bag of chips = x

1/2 / 1 = 2 / x

By cross multiplying we get

1/2 x = 2

x = 2 / 1/2

x = 2 * 2

x = 4

Therefore, for 1 bag of chips, he used 4 bags of Cheetos.

To learn more about unit rates refer below

https://brainly.com/question/17685676

#SPJ9

Answer:

The variance is doubled; C

Step-by-step explanation:

Here, we want to select what will be wrong if every number in the dataset is doubled

A. This is correct

The mean is the average of the numbers which is calculated by dividing the sum of the numbers by the count of the numbers

By doubling the numbers, we have simply doubled the sum while the count is same

So what we have as the result of the division will be 2 times what we had initially making the mean doubled

B. The mode is doubled

Yes, this is correct

The mode is the highest in frequency

Doubling all numbers will not double their frequencies but their values. So the number that was the mode in the previous case will be the same but now doubled

D. The median is doubled

This is correct

The median deals with the middle number.

Since all numbers are doubled in the present case, the median to is also doubled along side as the numbers are now twice what they were evenly

C. This is wrong

The variance has to do with the spread of data

We are actually subtracting values

Since we are doubling across board, the difference between the numbers is the same as this, the variance cannot change

We can look at this from the angle that all others are measures of central tendency looking at having a central figure while the variance is a measure of spread.

Answer:

The triangle ABE and DCE are congruent because they are the same size and same shape meaning they are congruent.

Step-by-step explanation:

For two figures to be congruent they must be the same size and shape or one could mirror the other since they mirror each other and are the same size and shape they are congruent.

Answer:

y = 2x+5

Step-by-step explanation:

Answer:

The answer is D

Step-by-step explanation:

If wrong plz correct me if right plz mark brainliest

Answer:

Step-by-step explanation:

Now add - x to both sides by the addition rule. Remember, adding the same quantity to both sides of an inequality does not change its direction.

Answer:

C is the correct answer to the question

Answer:

28

Step-by-step explanation:

M=16

Bro=4

Monisque will be 28 years when her brother is 16