A library is having a used book sale. All hardcover books
have the same price and all softcover books have the
same price. You buy 4 hardcover books and 2 softcover
books for $24. Your friend buys 3 hardcover books and
3 softcover books for $21. What is the cost in dollars of a
hardcover book?

Answers

Answer 1

Answer:  It should cost $5

Step-by-step explanation:

First you have 4 hardcover and 2 softcover, so 4x+2y= $24 and for your friend it would be 3x+3y= $21.

You have

(3x+3y)2  = 72

(4x+2y)3  = 42

Then subtract them which is 30 you would divide by 6 since 3x2=6

Which gets you to 5.

Answer 2
You have 4 hardcovers and 2 soft covers... soo the equation would be 4x+2y=$24
for the friend the equation would be 3x+3y=$21

Related Questions

A store clerk is stocking the shelves. He places on the shelf a box of cereal that weighs 850 grams, a box of granola bars that weighs 385 grams, and a box of crackers that weighs 435 grams. What is the total weight in kilograms?

16.70 kilograms
1.670 kilograms
167 kilograms
1,670 kilograms

Answers

0.850+.385+.435= 1.670 kilograms
D - 1,670 kilograms

Maria makes beaded necklaces. She charges a rate of $0.75 per inch in length plus $0.25 per bead as shown in the expression, where x represents the number of inches and y represents the number of beads.

0.75
x
+
0.25
y
What would Maria charge for a necklace 16 inches long with 60 beads?

Answers

16x+60y
16(.75)+60(.25)
12+15=27
maria would charge $27 for this necklace

Step-by-step explanation:

27$

I WILL GIVE BRAINIEST
Stanley has two sets of three cards face down on a table. Each set contains: the 2 of hearts, the 5 of diamonds, and the 8 of clubs. He randomly turns over one card from each set.


Find the probability of each event:

a) Both cards are red.

b) The first card is red and the second card is black.

c) Both cards are even numbers.

d) The sum of the numbers is greater than 8.


Which strategy did you use each time?

Please explain your work.

Answers

Answer:

Step-by-step explanation:

a)4/9

b) 4/9

c) 4/9

d)6/9

probability trees

PLEASE PLEASE HELP WILL GIIVE BRAINLIEST
I AM BEING TIMED

Answers

the correct answer is b .

Answer:

b will be the answer

Step-by-step explanation:

exponential function

A function in which the base e, the base of the natural logs, is raised to some power.

Hurry, please?

Its math thats all

Answers

Answer:

Below.

Step-by-step explanation:

3^3 = 27

and 4^3 = 64, so the answer will be between 3 and 4 on the number line.

Looks like Lin  took the square root of 49 instead of the cube root.

3^3 = 27 i believe.

Please help me answer this

I’ll give brainlest if it right

Answers

Answer:

3/10

Step-by-step explanation:

Their are three meat options you could select and there are ten options in the game so there for the probability is 3/10.

7/10 is the answer because it asks the probability of NOT choosing meat.

Is a triangle with leg lengths of 9 in. and 9 in. and hypotenuse of length √175 in. a right triangle?

Answers

Answer:

No

Step-by-step explanation:

a^2 + b^2 = c^2

9^2 + 9^2 = c^2

81 + 81 = c^2

162 = c^2

√162 = c

If it was a right triangle, its hypotenuse would be √162 inches long.

It’s 388382+ 73838383= 83929292 your welcome

Sidney measured a summer camp and made a scale drawing. The sand volleyball court is 3 centimeters wide in the drawing. The actual volleyball court is 9 meters wide. What scale did Sidney use for the drawing?
plz help i beg if i don't do this i will fail
i wil give brainlist
and 20 point

Answers

Answer:

1:300

Step-by-step explanation:

9m=900cm

900/3=300

`1:300

Answer:

1:300

Step-by-step explanation:

best answer gets brainliest and plz tell me how you know thats the answer or show work

Answers

The answer is D. Multiply the 1/8 by 40 then 2/5 by 40 you’ll get 21. And 40-21 equals 19
The answer is d cause I know

Please help me find the circumference for the pizza round to the nearest tenth.

Answers

Formula to calculate circumference = 2 x Radius x Pi

2 x 6 in = 12 in

12 x 3.14 = 36.168

Rounded = 36.2

Factor [tex]15x+ 40[/tex] Show what you're dividing each term by

Answers

Answer:

The answer is 5(3x + 8)

Step-by-step explanation:

Find the Greatest Common Factor (GCF).

[tex]gcf = 5[/tex]

Factor out the GCF.

[tex]5( \frac{15x}{5} + \frac{40}{5} )[/tex]

Simplify each term in parentheses.

[tex]5(3x + 8)[/tex]

hence, the answer will be 5(3x + 8).

Answer:

15x+40 = 5(3x+8)

Step-by-step explanation:

The GCF (greatest common factor) of the terms 15x and 40 is 5.
15x/5 + 40/5
5(3x+8)

Is this correct?? if not pls tell me the correct answer
(choose the answer that best corrects the misplaced modifier in each sentence. )

Answers

Yea it is correct I have to type at these 20 words or I can’t answer but yes u are correct

Explain how to find the volume of a triangular pyramid. (Explain the steps)

Answers

Zoom in to see clearly and it shows an example there.

If you bought 24 light bulbs, how much money would you save by buying the less expensive light bulbs?

Answers

with the more expensive light bulbs, the cost would be $155.52

with the less expensive light bulb, the cost would be $119.04

This means you would save $36.48

Answer:

$3.84 is the amount you save by purchasing the cheaper lightbulbs when buying 24.

Step-by-step explanation:

Alrighty, so!

With this one, I broke down the price per lightbulb (divided the money by the amount of bulbs in the package).

$4.96/4= $1.24/bulb

$6.48/6= $1.08/bulb

I then multiplied that amount per bulb by 24.....

$1.24 x 24 = $29.76

$1.08 x 24 = $25.92

.... And subtracted the lower number from the higher number to get the answer.

$29.76-$25.92= $3.84

Hope this helps :D

Find m∠VUR. Justify your answer.

Answers

Angle VUR =130°

Angle VUR and and Angle RUS are Supplementary Angles, meaning the sum of them together =180°

Subtract 50° from 180° and you get 130°.

I hoped this helped.

Dan is drawing a self-portrait. His face is 8 inches long and his nose is 2 inches long. If the face in the drawing is 14 inches long, how long should he make the nose?

Answers

the answer would be 3.5 inches. you have you use proportions. so 14/8 = x/2 then cross multiply and simplify :)

Answer:

6

Step-by-step explanation:

please help im almost a bit close, i’ll mark and brainlest please be serious or i will take my points back.

shoutout:
brainly.com/app/profile/19154158/answers

Answers

Answer:

22

Step-by-step explanation:

The median shows the midpoint of the data, so for a box and whisker plot the median would be the number that splits the box. for this question the median would be 22

Answer:

22

Step-by-step explanation:

The median lands on 22

Can someone please help me figure out how to solve this?

Answers

Answer:

B. 48m²

Step-by-step explanation:

The formula for volume is length (base) times width times height, or LWH. If you break the shape into three separate areas, you can figure out the volume for each part and then add it up.

The large part on the bottom is 7m long, 2m across. Since we know the entire shape is 4m tall and the indent is 2m deep, we know that the height for the bottom part will also be 2m. 7 · 2 · 2 = 28.

The block on the left is 2m tall, 2m across, and its width is also 2m as shown by the measurement on the bottom-right. 2 · 2 · 2 = 8.

Finally, the block on the right is 2m tall, 3m across, with a width of 2m. 3 · 2 · 2 = 12. And when you add it all up, 28 + 8 + 12 = 48. Hope this helps! Feel free to ask any questions!

Please someone help me!!! ASAP

Answers

The correct answer is 5 bags
It’s 5 bags the answer

Write an equivalent expression? Explain your reasoning. (t+t+t) +7t-6/(t+t+t)+2t-3

Answers

Answer:

Step-by-step explanation:

Combine any like terms on each side of the equation: x-terms with x-terms and constants with constants. Arrange the terms in the same order, usually x-term before constants. If all of the terms in the two expressions are identical, then the two expressions are equivalent.

Answer:

10t-6/5t-3

Step-by-step explanation:

Combine any like terms on each side of the equation: x-terms with x-terms and constants with constants. Arrange the terms in the same order, usually x-term before constants. If all of the terms in the two expressions are identical, then the two expressions are equivalent.

This is asking for volume, ROUND TO NEAREST TENTHs

Answers

the answer is 50.5 but the full volume is 50.51

please help. No links or fake answers. If your going to answer, may you please do one screenshot at the least. Thank you for your time.

Answers

Answer:

29

Step-by-step explanation:

Since its already answered I need points

Guys help me out whoever tells me the best way to expose a teacher or troll them gets brainiest

Answers

Answer:

Change your name, unmute your microphone, and play rickroll

Step-by-step explanation:

YAAAAA

Answer:

use grabify to get their ip and then dox them

Step-by-step explanation:

Really need help rn...........................

Answers

answer
5,2
step by step..

Here is the actual question. Please help !

Answers

Answer:

x = 15

Please mark Brainliest if I'm correct  :)

Step-by-step explanation:

35/7 = 5

50/5 = 10

75/5 = 15

I’m helping the other person get brainly so just ignore my response:)

PLS HELP!!!!!!!!!!!!!

Answers

Answer:

42.5, sorry if I get it wrong lol

Step-by-step explanation:

42.5 yes correct !!!

Find the value of x and m∠HKL.

Answers

Answer:

x = 25 degrees   ∠HKL = 102 degrees

Step-by-step explanation:

The whole thing equals 180, since it is a straight angle

The value of HKL is 180 - 78 = 102

So that means 4x + 2 = 102

Subtract 2 from both sides:

4x = 100

Divide both sides by 4:

x = 25

You want to buy seeds to plant a tomato garden. You have $15 to buy the seeds. Each seed package costs $1.25. We will let p equal the number of seed packets you can buy. Write an equation you can use to find out how many seed packets p you can buy.

Answers

$15/$1.25 = p
p = 12
(/ means divide the numbers on either side)
15 divided by 1.25 = p

How do I troll my teacher just found out their side job is a P05N actor

Answers

Answer:

just make hints of it to them, whats their name tho?

Step-by-step explanation:

Answer:

MAKE A FAKE ACCOUNT AND TERRORIZE THEM

Step-by-step explanation:

TELL THEM YOU KNOW WHO THEY ARE AND WHERE THEY WORK, BUT DONT TELL WHO U ARE

there are 6 boys and 5 girls in the debate class. kids are being selected to go present their work without getting opt-out where is the probability that a boy will be selected to present twice?

Answers

Answer:

30%?

Step-by-step explanation:

6 boys, 5 girls

first selection is a 6/11 chance it's a boy.

second seletion is a 6/11 chance it's a boy.

6/11 times 6/11 is... 0.2975 or about a 30% chance ( i think)

Just multiply the probability of the first event by the second. For example, if the probability of event A is 2/9 and the probability of event B is 3/9 then the probability of both events happening at the same time is (2/9)*(3/9) = 6/81 = 2/27.

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