PLEASE HELP!! WHOEVER ANSWERS THE BEST GETS BRAINLIEST AND 20 POINTS!!!

PLEASE HELP!! WHOEVER ANSWERS THE BEST GETS BRAINLIEST AND 20 POINTS!!!

Answers

Answer 1

Answer: 19.50

Step-by-step explanation:

Write a system of equations to represent the problem. Let x represent the cost of a binder, and let y represent the cost of a notebook.

Grace buys 4 binders and 7 notebooks for $26.50 total, so the equation 4x+7y=26.50 represents how much Grace spends.

Grace's friend buys 3 binders and 6 notebooks for $21.00 total, so the equation 3x+6y=21 represents how much her friend spends.

You can use this system of equations to find how much money Grace and her friend spend on notebooks:

4x+7y=26.50

3x+6y=21

Next, find how much Grace and her friend spent on notebooks. Start by finding the cost of one notebook. Use elimination to solve for y. .

3(4x+7y)=3(26.50)  

12x+21y = 79.50

4(3x+6y)=

4(21)  

12x–24y =  

84

3y =  

4.50

y = 1.50

Each notebook costs $1.50. Grace and her friend buy a total of 13 notebooks, so multiply to find how much money they spend on notebooks.

13$1.50=$19.50


Related Questions

Please answer these questions! I’ll give you brainliest an more! ASAP due Monday!

Please answer these questions! Ill give you brainliest an more! ASAP due Monday!

Answers

Answer:

Supplies used:

a. 12 feet of wood used

b. 3.5 bundles used, .5 left

Areas:

a. .75 ft

b. 1.61 ft

c. 2.625 ft

d. 3.33 ft (3 1/3 ft)

Paint:

8 ounces

Step-by-step explanation:

For the supplies used, we can multiply 16 by 3/4 to get 48/4, which simplifies to 12

Then for the shingles we can multiply 4 by 7/8 to get 28/8, which simplifies to 3.5

To get the areas, we just have to multiply the length and width together

6/7 * 7/8 will give us 3/4 or .75

1 1/8 * 1 3/7 will give us 1.61 feet

1 1/8 * 2 1/3 will give us 2.625 feet

1 3/7 * 2 1/3 will give us 3.33 or 3 1/3 ft

To find out how much paint we need, we just have to multiply 2/3 by 12

So we will get 24/3, which simplifies to 8

So we need 8 ounces of paint

If I missed anything please let me know,

Best of luck

A scientist used 786 milliliters of a liquid for an experiment. How many liters of the liquid did the scientist use for this experiment?

A- 786,000 L

B- 7.86 L

C- 0.786 L

D- 0.0786 L

Answers

the answer is d , i hope this helps !

Answer:

0.786L

Step-by-step explanation:

HELPPPPP PLS!!!!!!!!!

HELPPPPP PLS!!!!!!!!!

Answers

Answer:

its 27 but its not there so is

1. no

2.no

3.no

4.no

Step-by-step explanation:

plase give me brailiest

help!! its a part A and part b question
(don't mind my answer for A I pressed it by accident)

help!! its a part A and part b question(don't mind my answer for A I pressed it by accident)

Answers

Answer:

2cm is 5km

Step-by-step explanation:

16cm is 40km

Answer: 4e+6 centimeters

Step-by-step explanation:

Multiply the length value by 100000 and you'll get your answer.

40x100000= 4e+6 (Multiplied by length value).

the two images below are my question...

the two images below are my question...
the two images below are my question...

Answers

Answer:

r = 9.7

Step-by-step explanation:

r-4=5.7

+4 on both sides

r=9.7

:]

R=9.7
R-4=5.7
+4 on both sides
R=9.7

What is the constant of proportionality for the relationship between the number of laps and the number of hours?

What is the constant of proportionality for the relationship between the number of laps and the number

Answers

Answer:

24 laps per hour

Step-by-step explanation:

1/2 hr. is 30 mins she ran 12 laps in 30 mins

60 divided by 30 equals 2

12 time 2 equals 24

Answer:

\( \bf \implies{24 \: laps/hour}\)

Step-by-step explanation:

\( \bf \longrightarrow12 \div \frac{1}{2} \\ \\ \bf \longrightarrow12 \times 2 \\ \\ \bf \longrightarrow24 \: laps/hour\)

KA AGAIN ( 2 pdfs)
correct answers only

KA AGAIN ( 2 pdfs)correct answers only
KA AGAIN ( 2 pdfs)correct answers only

Answers

Answer:

B

Step-by-step explanation:

To find the constant of proportionality between y and x, divide  \(\frac{y}{x}\) for all given values of the chart. If you get the same number, then that is the constant. If they are all different numbers, then one does not exist for that function.

Using the method above, you should get:

Chart A = 2/5

Chart B = 1/5 (Correct Answer!)

Chart C = N/A

Hope this helps!

Answer:

the answer is B

Step-by-step explanation:

Hope this helps

A prism is completely filled with 540 cubes that have edge length of 1/3 cm.

What is the volume of the prism?

Answers

Answer: 20

Step-by-step explanation:

Each little cube is 1/27 cm cubed. If you multiply by 540, you get 540/27. This equals 20.

What is the measurement of the longest line segment in a right rectangular prism that is 11.2 centimeters​ long, 6.6 centimeters​ wide, and 6 centimeters​ tall?

Answers

Answer:

Step-by-step explanation:

3.1313109

Answer: the answer should equal 3.131

Step-by-step explanation: as this is the measurement of the longest line in right rectangular prism.

Please got brainliest

help me plz! thx sooo much! =D

help me plz! thx sooo much! =D

Answers

Answer:

X        Y

1         25

3        17

4        13

6        5

Step-by-step explanation:

All we need to do is substitute the x values into the equation and we will find the y values!

In each equation, select an operation to make the equation true by making the operation happen where the question mark appears.



PLEASE HELP ME

In each equation, select an operation to make the equation true by making the operation happen where

Answers

Answer:
The first one is +
The second one is x (multiply)
The third (I am not sure)
Forth is a - (minus)
Fifth is a - (minus)
And last (I am not sure)
Sorry
What is the questions it's wroooooooooon

please help me i will give brainliest to first person to anwser.

please help me i will give brainliest to first person to anwser.

Answers

A. 1607.7

First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7
please help me i will give brainliest to first person to anwser.

Answer:

The first option, V ≈ 1607.7 in²

Step-by-step explanation:

Find the volume of the given cylinder.

\(\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}\)

Given:

r = 8 in

h = 8 in

π = 3.14

Find:

V = ?? in³

\(\hrulefill\)

Now solving,

Substitute the given values into the formula:

=> V = (3.14)(8)²(8)

Using a calculator to simplify:

=> V = 1607.68 in²

Rounded to the nearest tenth:

∴ V ≈ 1607.7 in²

Thus, the first option is correct.

What number should go in the box to make the equation true? Explain how you got to your answer.


- (3/4) = ?/4


A. -3

B. 3

C. -4

D. 4

What number should go in the box to make the equation true? Explain how you got to your answer.- (3/4)

Answers

B is the correct answer for this because -3/4 equals 0.75 and 0.75 equals 3/4. Hope this helps you:)
B I had it yesterday

Please help me! im on an assignment an cant figure it out

Please help me! im on an assignment an cant figure it out

Answers

Step-by-step explanation:

The difference beteen 9.2 ounces and 8.1 ounces is  1.1 ounces

   and the difference in price is   .49

       so 1.1 ounces cost .49

           $ .49 / 1.1 oz = $  .445  per ounce

Then Reid's bowl should cost   7.8 oz  * $ .445 / oz = $3.47

7.78 I think I don’t remember

For each ride, a taxi service charges an initial fee plus an additional fee based on the number of kilometers of the trip. The graph shows the cost for taxi rides. Select a true statement. The rise is 4 while the run is 2. The selection of answers are:
A: The slope is 2.1. This means that each kilometer costs $2.10.
B: The slope is 5. This means that each kilometer costs $5.
C: The y-intercept is 2.1. This means that the initial fee is $2.10.
D: The y-intercept is 5. This means that the ride lasts 5. kilometers.

Which one is right and why?

Answers

THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!

The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.

The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.

The answer for this is a

Which transformation from the graph of a function f(x) describes the graph of 5f(x)?
Part A: vertical or horizontal?
Part B: stretch or shift?
Part C: right, by a factor of, up, left, or down?

Answers

Answer:

Step-by-step explanation: shifted up 5

Answer:

Step-by-step explanation:

shrinks vertically

I WILL MAYBE GIVE BRAINLIEST IF CORRECT PLS ANSWER

\(\sqrt{49 } =\)

a. 9
b. 14
c. 8
d. 7

Answers

Answer:

The answer is d

Step-by-step explanation:

cause 7 x 7 is 49

Answer for your question: D. 7
7 * 7 = 49

What is -4/7 divided by 5?

Answers

Answer:

-4/35

Step-by-step explanation:

-4/35. use keep change flip with -4/7 / 5/1, KCF it to -4/7 x 1/5 then top times top bottom times bottom and get -4/35.

Marcus needs 12 cups of edible flowers to make the breakfast mixture to feed the zoo's emperor tamarin monkey troop for the week. The number of cups of edible flowers the zoo has in storage is represented by the expression 1.875c−(c+0.5d). If c=25 and d=20, does Marcus have enough edible flowers to make the breakfast mixture for the emperor tamarin monkeys?

No, because 1.875(25)-((25)+0.5(20))=11.875, which is less than 12.

No, because 1.875(25)−((25)+0.5(25))=9.375, which is less than 12.

No, because 1.875(20)−((25)+0.5(20))=2.5, which is less than 12.

No, because 1.875(20)−((20)+0.5(25))=5, which is less than 12.

Answers

No, because 1.875(25)-((25)+0.5(20))=11.875 which is less than 12

Answer:

No, because 1.875(25)-((25)+0.5(20))=11.875, which is less than 12.

Step-by-step explanation:

c = 25       d = 20

1.875(25) - (25+0.5*20) =

46.875 - 35 =

11.875

the ratio of the number of oranges to apples to bananas is 8:5:2. if there are 120 fruits in total, how many bananas are there

Answers

Answer:

Step-by-step explanation:

To find the number of bananas, we need to determine the proportion of bananas in the total number of fruits based on the given ratio.

Let's assume that the ratio of oranges, apples, and bananas can be represented by 8x, 5x, and 2x, respectively, where x is a common multiplier.

The sum of the parts in the ratio is 8x + 5x + 2x = 15x.

We know that the total number of fruits is 120. Therefore, we can set up the following equation:

15x = 120

To solve for x, we divide both sides of the equation by 15:

x = 120 / 15

x = 8

Now that we know the value of x, we can find the number of bananas by multiplying it by the corresponding part of the ratio:

Number of bananas = 2x = 2 * 8 = 16

So, there are 16 bananas in total.

We can add all the parts to the ratio and get 15. Out of 15 parts, 2 are bananas. Now we can calculate how many fruits are in one part. One fifteenth of 120 is 8, so there are 8 fruits in one part. 2 parts are bananas, so multiplying 8 with 2 gives us our answer, 16.

A cardboard storage carton has a length of 3 feet, a width of 2 feet, and a volume of 12 ft³.whatis the minimum amount of cardboard needed to make the box? [hint: you're given volume, so find the missing height. then use your 3 dimensions to find the total surface area.]

Answers

The minimum is :32: ft.


Brainlist pls
To find the missing height, we can use the formula for the volume of a rectangular box:

Volume = Length x Width x Height

Substituting the given values, we get:

12 = 3 x 2 x Height

Solving for the height, we get:

Height = 12 ÷ (3 x 2) = 2 feet

Now, we can use the dimensions to find the total surface area of the box. The surface area of a rectangular box can be found using the formula:

Surface Area = 2lw + 2lh + 2wh

where l, w, and h are the length, width, and height of the box, respectively.

Substituting the given values, we get:

Surface Area = 2(3 x 2) + 2(3 x 2) + 2(2 x 2) = 12 + 12 + 8 = 32 square feet

Therefore, the minimum amount of cardboard needed to make the box is 32 square feet

HELP WITH IN 5 MINS WHOEVER GETS IT RIGHT STEP BY STEP WILL BE BRAINLEST

Theo makes a decorative bookmark of size 2"*6" for his teacher. Find the area of the bookmark.

HELP WITH IN 5 MINS WHOEVER GETS IT RIGHT STEP BY STEP WILL BE BRAINLEST Theo makes a decorative bookmark

Answers

Answer:

12

Step-by-step explanation:

book mark is in the form of rectangle area of rectangle = length into breadth = 6 into 2 = 12

Answer:

12 inches

Step-by-step explanation:

2 x 6 = 12

12 inches

Have an amazing day!

PLEASE MARK BRAINLIEST!

Please help me. Mark me the branliest.

Topic: Percentage

Q1) 80% of a dog's mass is equal to 24% of the mass of a lion. If the mass of the lion is 105 kg more than the mass of the dog, find the total mass of the dog and the lion.​

Answers

To solve this problem, let's denote the mass of the dog as D and the mass of the lion as L.

We are given that 80% of the dog's mass is equal to 24% of the lion's mass. Mathematically, this can be expressed as:

0.80D = 0.24L

We are also given that the mass of the lion is 105 kg more than the mass of the dog:

L = D + 105

We can use these two equations to find the values of D and L.

Substituting the value of L from the second equation into the first equation:

0.80D = 0.24(D + 105)

Now, let's solve for D:

0.80D = 0.24D + 0.24(105)

0.80D - 0.24D = 25.2

0.56D = 25.2

D = 25.2 / 0.56

D ≈ 45

Now that we have the value of D, we can find the value of L by substituting it back into the second equation:

L = 45 + 105

L = 150

Therefore, the total mass of the dog and the lion is:

D + L = 45 + 150 = 195 kg

So, the total mass of the dog and the lion is 195 kg.
Person above is correct

Isabel is mixing paint. She mixes 2 (1/3) pints of blue paint and 4 (1/4) pints of yellow paint.

Which of the following has a ratio of blue paint to yellow paint that is proportional to the amounts used in Isabel's paint mixture?

Isabel is mixing paint. She mixes 2 (1/3) pints of blue paint and 4 (1/4) pints of yellow paint.Which

Answers

Answer: None of these are correct

Step-by-step explanation:

these are all wrong

What is the value of x and y please explain will give brainliest if you give me a good explanation!!

What is the value of x and y please explain will give brainliest if you give me a good explanation!!

Answers

x = 30
y = 120

30 x 4 = 120
120 + 120 = 240
240 + 120 = 360
The first number in an ordered pair is a value for x, and the second number is a value for y.

100 POINTS+BRAINLIEST -8TH GRADE MATH- 4 LITTLE MULTIPLE CHOICE QUESTIONS
**3 of them are simplifying algebraic expressions- please explain how and some rules to remember when doing so.
**the last 1 is determining whether 2 lines are parallel, perpendicular, or neither. Please define each term and show how to find out.
THANKS SO MUCH!!!

100 POINTS+BRAINLIEST -8TH GRADE MATH- 4 LITTLE MULTIPLE CHOICE QUESTIONS**3 of them are simplifying
100 POINTS+BRAINLIEST -8TH GRADE MATH- 4 LITTLE MULTIPLE CHOICE QUESTIONS**3 of them are simplifying
100 POINTS+BRAINLIEST -8TH GRADE MATH- 4 LITTLE MULTIPLE CHOICE QUESTIONS**3 of them are simplifying
100 POINTS+BRAINLIEST -8TH GRADE MATH- 4 LITTLE MULTIPLE CHOICE QUESTIONS**3 of them are simplifying

Answers

Answer:

3x+y=6            is parallel

y=-3x-2

     

   4x               2

-----------   -   -----------                       2/x+5

x^2-25          x-5

5                 3

------    +   -------                               8x+19/x^2+5x+6

x+3           x+2

Step-by-step explanation:

It is parallell 3x+y=6 and y=-3x-2

Molly wants to buy a dress that costs $20. She has a coupon for 40% off, and there is a 10% sales tax. How much will she pay altogether?

1. What is the 40% of $20? Show your work.

2. After using the coupon, what is the sale price of the dress?

3. How much is the 10% tax on the sale price? Explain how you found your answer.

4. After tax is added to the sale price, how much does Molly pay for the dress?

Answers

Use demos but to show you’re work for number one it would be
Molly wants to buy a dress that costs $20. She has a coupon for 40% off, and there is a 10% sales tax.

How do i do this please actually give a good answer i will mark brainliest, look at the picture.

How do i do this please actually give a good answer i will mark brainliest, look at the picture.

Answers

do you have to graph it?

Answer:

Domain = -4,-3,-2,-1, 0, 1, 2, 3

Range = -3, -1, 0.2, 0.3, 1, 2, 5,

Step-by-step explanation:

x = domain

f(x) = y values = range values

We simply do not need repeats ie) -1, and -1 both shown on the same y axis table or side of graph) and can show numerical order if wanted.

How many 2 digit prime numbers can you make make with 2,3,7,9 without repeating a digit?

Answers

The numbers can be:237927392937329772939273Prime numbers are 23, 79, 29, 37, 97, 73

So you can make 6 prime numbers.

Answer:

6

Hope you could get an idea from here.

Doubt clarification - use comment section.

Answer:

Hey mate!

Step-by-step explanation:

Lets take two places _ _

Now first position is filled in 4 ways (can use 2 3 7 9) that implies 4C1

then second position is filled in 3 ways since for first position we used a digit

and the condition is that not to repeat the digits, so it is done in 3C1 ways.

so the answer is 4*3 or (4C1*3C1)=12;

pls mark me as brainliest!!

please help I dont know how to do this.

please help I dont know how to do this.

Answers

Answer: The expression would be 2b+7

Step-by-step explanation:

b will be the number of blue beads for the bracelet.

The number of red beads will be represented as b + 7.

Determine the expression for the total number of beads.

Then we can written it as,

= b + (b +7)

= 2b + 7.

Our algebraic expression would simply be 2x + 7
:)
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Sandy has one year of college left and she'll need a loan for $6,600 to finish her degree. She uses the following formula to determine her monthly payment with a 6% annual interest rate for 3 years. P=66000.061(1+0.06)36 "Grandpa, don't die!" Emma Abrams choked with deep conviction. "You mean everything to me. I can't live without you!" This was the part of the script where Emma was supposed to burst into real tears, yet her big blue eyes were like a desert. Emma tried to think of something despairing, like the time her toddling brother sliced his finger on a piece of broken glass while she was watching him, or the devastation she felt when learning that her cat had run away. These sad reflections did nothing to moisten her eyes. "Well, don't panic, Emma," she coached herself. "When it counts in the audition today, you'll cry real tears. You've just got to!"2It was difficult to study the script in the car with all of the bumps, turns, and sudden stops typical of trips into New York City, but Emma was determined to make sure that she had each line memorized word for word. She had studied every line nonstop since her agent had called with the good news. It was her first Broadway audition and her entire family had helped her to prepare. Her older sister helped her choreograph a dance, her father improvised with her by playing the part of Grandpa at the dinner table, and her little brother listened to her read her lines. No one was more constant in helping Emma realize her thespian ambitions than her mother, though. Mom was the one who accompanied Emma to her piano, voice, dance, and drama lessons each weekday after school. 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Her father looked into the rearview mirror and said, "Wow, honey! If you can do that during the audition, you're a shoo-in." He was genuinely impressed and didn't realize that her tears were real. Emma stared out the window, feeling sorry for herself.5Emma watched her dad hand his car keys to the parking attendant. They walked in silence for several blocks, with Emma holding her father's arm. She wanted to ask her father to come in to the audition with her, but she knew he'd be uncomfortable around a bunch of stage mothers. Emma soon found herself being escorted into a crowded lobby. She waved good-bye to her father and disappeared inside the theater.6When she emerged from the audition several hours later, Emma was exhausted but triumphant. 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