Alejandro bought 6 notebooks and 2 binders for $23.52. Cassie bought 3 notebooks and 4 binders for $25.53. What was the cost, in dollars, of 1 notebook?​

Answers

Answer 1

Answer:

1 notebook $2.39

Step-by-step explanation:

n=notebook     b= binder

6n +2b =23.52

3n +4b = 25.53

MULTIPLY THE FIRST BY -2 AND ADD BOTH

-12n -4b = -47.04

3n + 4b = 25.53

(b is eliminated since 4b -4b=0)

-9n =  -21.51

9n = 21.51

n = 2.39


Related Questions

Suppose that an individual has a body fat percentage of 18.9% and weighs 141 pounds. How many pounds of her weight is made up of fat? Round your answer to the nearest tenth.

Please respond within the hour
Thanks

Answers

here is the proportion I used to get the answer. hopefully this helps

What's the area and the perimeter of rectangle ABDC shown in the coordinate plane?
Question 2 options:

A)

Area = 32 square units; perimeter = 24 units

B)

Area = 24 units; perimeter = 32 square units

C)

Area = 24 square units; perimeter = 32 units

D)

Area = 32 units; perimeter = 24 square units

Answers

B. The perimeter is 24 units and the area is 32 square units.

Help Please !!

A baby bird can eat 14 feet of earthworm every day. At this rate, how many days would it take six baby birds to eat 840 feet of worms?

Answers

Answer:

10

Step-by-step explanation:

Answer:

10 days

Step-by-step explanation:

840 feet of worms divided by 6 birds = 140

If a baby bird can eat 14 feet of earthworms every day, then:

140 divided by 14 = 10

It would take 10 days for 6 birds to eat 840 feet of worms

2.50 rounded to the nearest cent

Answers

Answer:

To round 2.5 to the nearest cent consider the thousandths’ value of 2.5, which is 0 and less than 5. Therefore, the cents value of 2.5 remains 0. answer $2.5   rounded to the nearest cent = $2.50

Step-by-step explanation:

If you like to round 2.5 to the nearest cent, rendering the amount with only two numbers after the decimal point, then you have come to the right post.

I need help with this question I'm in 9th grade​

Answers

Answer:

Check pdf

Step-by-step explanation:

PLEASR HELP THIS IS THE LAST QUESTION AND ITS DUR IN 4 MINUTES

Answers

Answer:

3x(3x-5)

Step-by-step explanation:

I can do this in my head but I hope it is right but if not I'm sorry

Answer:

- 3x ( x² - 4x + 5 )

Step-by-step explanation:

- 3x ( x² - 4x + 5 )

A recipe calls for 3/4 cup of brown sugar for every 3 eggs. What is the unit rate of eggs per cup?

Answers

Answer:

4 eggs per cup

Step-by-step explanation:

What is the slope of the line that goes through the points (12, 5) and (7, 2)

Answers

Answer:

3/5

Step-by-step explanation:

5-2 = 3

12-7 = 5

3/5

Solve for 3x^2-10x+8=0
(SHOW YOUR WORK)QUICKLY

Answers

Answer:

Step-by-step explanation:

Step 1: Factor left side of equation.

(3x−4)(x−2)=0

Step 2: Set factors equal to 0.

3x−4=0 or  x−2=0

Answer:

x= 4 /3  or x=2

 

Answer:

5/3 +/- 1/3

or

x= 2

or

x= 1 /3

Step-by-step explanation:

plug all of the numbers into the formula attached,

the first coefficient is a, the second is b, and the last is c

So a=3 b=-10 and c=8

Ben bought a new computer for $1200. Each yedt, the value of the computer decreases
by 30% of the previous year's value. At this rate, what can Ben expect the approximate
value of the computer to be after 6 years?
$130
$360
$0.88
$141

Answers

Answer:

$141

Step-by-step explanation:

1200-(1200*30/100 )

and i did that six time each tume with the new numbers i got

On Old McDonald's Farm, there are 16 cows and 4 sheep in the first field. If this ratio is proportional, and there are 48 total sheep on the farm, how many cows does Old McDonald have? *

Answers

Answer:

192 cows

Step-by-step explanation:

16 cows : 4 sheep

? cows : 48 sheep

48 / 4 = 12

16 x 12 = 192

Answer:

192 Cows

Step-by-step explanation:

if the ratio is 1 sheep: 4 cows then by multiplying 48 by 4 you get a total of 192 cows



please help me with this problem, i'd appreciate it sm and thank u for taking the time out of your day to help me and others. :)

Answers

Answer:

7. Each sweatshirt is $60

8. Table is    3,60 and   5, 100  and   8,160  and   9,180  and     12,240

9. You would graph table by plotting the x,y coordinates of each point on a graph and connecting the dots to show linear relationship

Step-by-step explanation:

What is the range of the function y= 5-2x when the domain is {0,1,2,3}

Answers

Answer:

The range for the function y=5-2x is all real numbers, but the numbers corresponding the the domain values of 0, 1, 2, and 3, are 5, 3, 1, -1.

Step-by-step explanation:

GIVING BRAINLIEST, FIVE STARS AND THANKS!! PLS AND TY!!

1. Is the product of 12 and 3/4 more or less than 12? Explain your answer in complete sentences.



2. Is the quotient of 5 and 1/2 greater than or less than 5? Explain your answer in complete sentences.

Answers

Answer:

1.) The product of 12 and 3/4 is less than 12. This is because you are multiplying 12 by a number less than 1.

2.) The product of 5 and 1/2  is less than 5, this is because you are multiplying 5 by a number less than one.

Step-by-step explanation:

If multiplied by a number less than one then it will be smaller than original

If multiplied by one will be the same as original

If multiplied by a number greater than one it will be greater than original

Re-write the statement 19+7÷2-5 by including ONE pair of brackets to make the total value equal to 8

Answers

Answer:

(19+7)÷2-5

Step-by-step explanation:

you need to add 19 and 7 together first to get 8 then go in order of operations

image

Are the two triangles similar? If so, state the reason and the similarity statement.
Question 1 options:

A)

Yes; AA; ΔIGF ∼ ΔMNL

B)

Yes; SAS; ΔIGF ∼ ΔMNL

C)

Impossible to determine.

D)

The triangles are not similar.

Answers

Answer:

Yes; SSS;Triangle AYM Triangle EDC The answer will be D is the correct answer choice.

Step-by-step explanation:

Help meeeeeeeewee plsssssss

Answers

Answer:

D

Step-by-step explanation:

multiplying the day with 54 gives you its amount earned

Find the area of the figure.
(Sides meet at right angles.)
3 ft
2 ft
2 ft
1 ft
5 ft
2 ft
2 ft
3 ft

Answers

50 sq ft. Explanation:
50ft I think , I’m not 100% sure

Q1.) Morgan buys 3 pairs of socks for $1.29 each and a pair of shoes for $29.95. The sales tax is 8 %.
What is the total amount she spends including tax?

Answers

Answer:

She spends $36.53

Simplify the Expression
2(x +14) - (2x - 5)

Answers

your answer would be 33.

step 1

2(+14)−1(2−5)

2+28−1(2−5)

step 2 distribute

2+28−1(2−5)

2+28−2+5

step 3 then add the numbers

2+28−2+5

2+33−2

combine

2+33−2

ANSWER IS

33

Cine ma poate ajuta?

Answers

Answer:

u think its A if not sorry

Step-by-step explanation:

what is the area of circle whose diameter is 32 inches? use π=3.14​

Answers

Answer:

803.84

Step-by-step explanation:

Radius is half of the diameter.

32/2=16

3.14*16^2=803.84

Answer:

803.84 in^2.

Step-by-step explanation:

Radius = 1/2 * 32 = 16

Area = 3.14 * 16^2

= 803.84.

toy store is having a sale on puzzles. For each puzzle Naomi buys
she gets 75% off a second puzzle. The original price of a puzzle is $16.60.
How much would 4 puzzles cost? *

Answers

Answer:

4 puzzles would cost $41.50

Answer:

$41.50

Step-by-step explanation:

Add the currency of your sum then subtract but double the 75%

i hope this helped :)

Find the x and y intercepts

7x - y = 28

Answers

Answer:(0, -28) and (4,0)

Step-by-step explanation:

[tex]7(0)-y =28\\-y=28\\y=-28\\(0, -28)[/tex]

[tex]7x-0= 28\\x=4\\(4,0)[/tex]

What is 238394 divided by 624

Answers

Answer:

382.041666667

Step-by-step explanation:

Answer:

382.0416

Step-by-step explanation:

A recipe for cookies calls for
cups of chocolate chips for every 3 dozen cookies made. How many cups of chocolate chips would be needed for 7 dozen cookies?

A.

B.

C.

D.

Answers

The answer is B.) you will need 3 cups of chocolate chips

For 7 dozens cookies 3 1/2 cups needed.

What is unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given:

For 3 dozen cookies = 1 1/2 cups = 3/2 cups

For 1 dozen cookies = 3/2 * 1/3 = 1/2 cups needed

So, for 7 dozen cookies = 1/2 * 7

                                       = 3 1/2 cups needed

Hence, for 7 dozens cookies 3 1/2 cups needed.

Learn more about unitary method here:

https://brainly.com/question/22056199

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What is the simplest form of the radical expression?
√2+√5/√2-√5

Answers

here u go...........

Heather drew the scaled drawing of a train car shown below. She used the scale of 2 cm = 5 ft to complete the
drawing.
Train Car
10.8 cm
What is the actual length of the train car?
A.21.6 ft
B.27 ft
C.43.2 ft
D54 ft

Answers

Answer: c

Step-by-step explanation:

The required actual length of the train is given as 27 ft.

Given that,
Heather drew the scaled drawing of a train car shown below. She used the scale of 2 cm = 5 ft to complete the drawing.

What is the scale factor?

The scale factor is defined as the ratio of the modified change in length to the original length.

here,
As given,
2 cm = 5 ft
1 cm = 5/2 ft
Tain car length = 10.8 m
Actual length = 10.8 × 5/2 = 27 ft

Thus, the required actual length of the train is given as 27 ft.

Learn more about Scale factors here:

https://brainly.com/question/22312172

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Select all ordered pairs that satisfy the function below.
A. (0,10)
B. (4,3)
C. (12,-1)
D. (1,8)

Answers

Answer:

B and C

Step-by-step explanation:

A, when x = 0, y = 5

B, when x = 4, y = 3

C, when x = 12, y = -1

D, when x = 1, y = 9/2

Your answer is B and C

Help me please please

Answers

Answer:

a. 45 + 20x

   30 + 26x

b. 2.5 hours

c. 95

Step-by-step explanation:

45 + 20x = 30 + 26x

subtract 30 from both sides of the equation

15 + 20x = 26x

subtract 20x from both sides of the equation

15 = 6x

divide 6x on both sides of the equation

2.5 = x

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