Rachel has 75 books.18 of the books are comics books. The rest of books are novels.
a. What percentage of the books are novels?
b. What percentage of her books are comics?

Answer:

7/2

Step-by-step explanation:

The reciprocal is basically just flipping the fraction upside down. Reciprocal is also called inverse.

The diagram is missing, so i have attached it.

Answer:

h = 7.7 cm

Step-by-step explanation:

From the attached image, we can see that the hypotenuse is 15 cm with the opposite side being h cm.

The angle is 31°

Thus, using trigonometric ratio, we have;

h/15 = sin 31

h = 15 sin 31

h = 15 × 0.5150

h = 7.725

Approximating to 1 decimal place gives;

h = 7.7 cm

Answer:

x=45°

Step-by-step explanation:

The 160° plus the unlabeled angle to the left of it are supplementary, meaning when added they equal 180°. The unlabeled angle will therefore be 20°. The angle across from the 20° will also be 20°. 115° + 20° = 135°. Now all that is left on the top half is x.

180° - 135° = 45°

d+p/20% Step-by-step explanation:

what are the options please ?

Answer:

hi

Step-by-step explanation:

Answer:

F

Step-by-step explanation:

Answer:

I believe the answer is f.

Answer: Probably $4,050

Step-by-step explanation:

The way you worded this is weird but I’m assuming you meant 10% off. Find 10% of 4500 (which is 450) and subtract that from the total, giving you 4050.

Answer: 49 cookies

Step-by-step explanation:  7 dozen= 84 , so subtract 84 by the 2 cookies she ate and you'll get 82, now 2 dozen= 24, so now subtract the 24 cookies that she gave to her brother by 82 and you'll get 58, then subtract the nine cookies she gave to her mom by 58 and you'll get 49 cookies.

so basically,, 84-2= 82 -2 = 58 -9= 49

I hope this helped :)

Answer:

2.5

Step-by-step explanation

2 divided by five is 2.5

Answer:

= 1 8 hope this helps!!! :)

Step-by-step explanation:

1 2 ⋅ −7 = 1 3 ( − 1 2 )

1 2 − 7 = 1 3 −1 2 )

1 2 − 7 = 1 3 − 1 2 )

Multiply by 1  

Combine multiplied terms into a single fraction  

Multiply by 1  

Add to both sides of the equation

Answer:

x = 3/2 = 1 1/2 = 1.5

Step-by-step explanation:

1/2 x -7=1/3(x-12)

Multiply 1/2 and -7 to get -7/2

-7/2 = 1/3(x-12)

Fraction -7/2 can be rewritten as -7/2 by extracting the negative sign.

- 7/2 = 1/3(x-12)

Use the distributive property to multiply 1/3 by x−12.

-7/2 = 1/3x + 1/3(-12)

Multiply 1/3 and −12 to get -12/3

-7/2 = 1/3x + -12/3

Divide −12 by 3 to get −4.

-7/2 = 1/3x + 4

Swap sides so that all variable terms are on the left hand side.

1/3x -4 = -7/2

Add 4 to both sides.

1/3x = -7/2 + 4

Convert 4 to fraction 8/2

1/3x = -7/2+8/2

Since -7/2 and 8/2 have the same denominator, add them by adding their numerators.

1/3x = -7+8/2

Add −7 and 8 to get 1.

1/3x = 1/2

Multiply both sides by 3, the reciprocal of 1/3

x = 1/2 x 3

Multiply 1/2 and 3 to get 3/2

x = 3/2

Answer:

33

Step-by-step explanation:

Answer:

It should be 37

Step-by-step explanation:

sorry if its wrong

Answer:

x = 28

Step-by-step explanation:

(x + 18)° + (5x - 6)° = 180° (supplementary angles)

Solve for x

x + 18 + 5x - 6 = 180

Add like terms

6x + 12 = 180

6x = 180 - 12 (subtraction property of equality)

6x = 168

x = 168/6 (division property of equality)

x = 28

Answer:

the numerical value of the correlation between percent of classes attended and grade index is r = 0.4

Step-by-step explanation:

Given the data in the question;

we know that;

the coefficient of determination is r²

while the correlation coefficient is defined as r = √(r²)

The coefficient of determination tells us the percentage of the variation in y by the corresponding variation in x.

Now, given that class attendance explained 16% of the variation in grade index among the students.

so

coefficient of determination is r² = 16%

The correlation coefficient between percent of classes attended and grade index will be;

r = √(r²)

r = √( 16% )

r = √( 0.16 )

r = 0.4  

Therefore,  the numerical value of the correlation between percent of classes attended and grade index is r = 0.4

Answer:

16 i think

Step-by-step explanation:

Answer:

i cant read that

Step-by-step explanation:

Answer:

Step-by-step explanation:

t7lu78o78

Answer:

a8 12 16 b.5 65  3

Step-by-step explanation:

ere

Answer:

6.8%

Step-by-step explanation:

Answer: 6.8%

Step-by-step explanation:

Answer:

Its Pi (3rd option)

Step-by-step explanation:

Or known as: π

Answer:

thats incorrect, the correct answer i believe is the pi symbol (the third option)

Step-by-step explanation:

Most numbers used in everyday life can be categorized as rational numbers, which means they can be written as a simple fraction or decimal. Pi is an irrational number, a number that is non-repeating and non-terminating. ... In fact, its been proven that between every two rational numbers is an irrational one.

I hope this helps!

Answer:

.15 or 15%

Step-by-step explanation:

20 × .15 = 3

hope this helps, good luck :)

Answer:

Step-by-step explanation:

The sign up fee is 20 dollars.

the cost per movie is x and it is fixed at 5 dollars.

Answer:

The trapezoid is D

Step-by-step explanation:

I learned this in 3rd grade

1) No, I have not been in a situation thankfully. But if I was in that situation, where someone was texting while driving, what I would do is turn the person’s phone to silent so that the person won’t get distracted. In addition, I would grab the person’s phone and keep it with me so that the phone is out of reach from the person driving and so that they won’t get distracted or curious and what notifications the are getting.

2) Spending time reading the received or to send a text just for 5 seconds, can increase your chance of crashing. It might seem that’s it not possible to crash just for looking on your phone for only 5 seconds, but it can happen.

3) I personally do think that it’s worth monetary and punitive price if you are caught texting and driving because you are risking the chance of not only getting yourself in danger, but everyone and everything around you. Paying the price will be a helpful reminder to not text and drive at the same time because it will teach you that there are consequences from texting and driving. In addition, if you did hit someone or something, that can not be undone and will effect you and other people. Paying a price can be done but potentially killing something or someone can not be done.

4) A few things that can help you not drive and text at the same time is the following:

- Simply just put your phone in silent. This will help the noises and vibrations from your phone notifications be silent and will help you not be distracted. This is a definitely number 1 rule to keep your eyes on the road instead of your phone.

- If you are with someone else, let the other person text for you so that you don’t have to look and take your hands off the wheel. Simply just say what you want to text to the other person so that they do your job for you.

- Put your phone somewhere you can’t reach it. For example, put it in the backseat so it’s not easy for you to reach it. This will help you not get tempted to grab your phone.

5) To a teenager, the advice I would give is the same things I put for question 3. I think that these steps applies not just for teenagers but for everyone who can drive, no matter the age. Now, to the individuals who think that it’s necessary to drive and text at the same time, what I would say to them is “threaten them” not in a bad way, but what I would say is “There has been a lot of cops around here, you should put your phone away or else you can get a ticket”. It will scare them because who wants to pay a ticket? No one right? If the person is stubborn because sometimes people think they are right and refuse to be in the wrong, just don’t ride with them. Why put yourself at risk? If they get hurt or get something hurt, it’s their fault. Just remember to never go on your phone while driving. Not only are you putting yourself at risk being hurt or even killed but putting everyone and everything else at risk by getting hurt or killed.

I hope this helped! :D

Answer:

The amount is not showing

Step-by-step explanation: