you are buying decorations for a birthday party. the before tax total for 3 rolls of crepe paper and 20 balloons is $11.40. after you start decorating, you need more supplies. you buy 2 more rolls of crepe paper and 10 more balloons for $7.20 before tax. how much did each cost?

please help with an explanation.

Answers

Answer 1

Answer & Step-by-step explanation:

Let's have

C = Creepers

B = Balloons

1) 6C + 20B = 11.9  

2) 2C + 15B = 6.05

Eliminate

16C + 20B = 11.9 x3  

-2C + 15B = 6.05 x4

18C + 60B = 35.7  

-8C + 60B = 24.2

10C/10 = 11.5/10  

C = 1.15


Related Questions

what is - 3/4 x (- 2/7) x 4/3? Explain your work

Answers

hope this helped! the answer is 2^7

Les bought used books online. The paperbacks cost $2 each and the
hardcover cost $3 each. He spent no more than $90 on the books
and bought no more than 35 books. Let x represent how many
paperback books he bought, and y represent how many hardcover
books he bought. How many of each book did he buy?

Answers

Answer:

he bought 20 hard cover and

he bought 15 paper back

Step-by-step explanation:

3x20= 60

2x15=  30

           90

he’s right it’s 90 because it’s 90

Increase the number 60 by 30%

Answers

Answer:

78

Step-by-step explanation:

10% = 6

⬇️ x3

30% = 18

⬇️ Add onto 60

60+18=78

10% of 60=6
30% of 60=18
60+18=78

it took katie4 hours to knit 9 scarves how many scarves could you make in 24 hours ​

Answers

Answer:

54 scarves

Step-by-step explanation:

4 hours-9 scarves

8 hours-18 scarves

12hours -27 scarves

16 hours-36 scarves

20 hours-45 scarves

24 hours-54 scarves

pattern: h+4 (hours)  s+9 (scarves)

Find side BC for the triangle shown (round to the nearest tenth).

Answers

Answer: 2.6 (rounded answer)

Step-by-step explanation: To solve for the side BC we can find the tangent (TAN) of 41 degrees. Since the tangent of an angle is equal to the opposite side over adjacent, we can set up an equation that looks like this, assigning side BC to be x:

tan(41)= x/16

0.1606567=x/16 <---- Use calculator to find tan(41)

0.1606567(16)=x/16(16) <---- Multiply each side by 16

2.5705071789=x

I WILL GIVE YOU BRAINLY PLSS


Worth 19 points

Answers

Answer:

Okie since i "answered" you can give him brainly

Step-by-step explanation:

WILL GIVE BRAINIEST

Answers

Answer:

nice fingers lol i cant see the whole problem

Step-by-step explanation:

Which relationships have the same constant of proportionality between yyy and xxx as the equation y=\dfrac{5}{2}xy=
2
5

xy, equals, start fraction, 5, divided by, 2, end fraction, x?

Answers

Answer:

5

Step-by-step explanation:

Answer:

b,c,e

Step-by-step explanation:

I took it in the test

One third + one fourth

Answers

Answer:

1/3 + 1/4 equals 7/12

if you click the image it will show you how to get the answer.

Student Council held a bake sale to raise money for the local food pantry. They sold a total of 40 items which included pies and cakes. Pies were $10 each and cakes were $8 each. They raised $356. How many pies and how many cakes did they sell?

Answers

Answer: 18 pies, 22 cakes

Step-by-step explanation:

Let the number of pies sold be represented by p.

Let the number of cakes be represented by c.

The information in the question can then be represented in an equation as:

p + c = 40 ........ i

10p + 8c = 356 ....... ii

Multiply equation i by 10

Multiply equation ii by 1

10p + 10c = 400 ....... iii

10p + 8c = 356 ....... iv

Subtract iv from iii

2c = 44

c = 44/2

c = 22

22 cakes were sold

Since 40 items were sold, the number of pies sold will be:

= 40 - 22

= 18 pies

There are 60,000 fans at the Super Bowl this year. If there is one
hotdog vendor for every 375 fans, how many hotdog vendors are
there?

Answers

It’s as simple as 60,000/375= 160.
So the answer is 160 hotdog vendors :)

Answer:

160

Step-by-step explanation:

60,000 / 375 = 160

A used automobile dealership recently reduced the price of a used compact car by 10​%. If the price of the car before discount was ​$18,100​, find the discount and the new price. The discount in price is ​$nothing. ​Thus, the new price is ​$nothing.

Answers

Answer:

Step-by-step explanation:

Your answer

New price = 16290

Discount = 1810

Mark it as Brainlist. Follow me for more answer.

find the 75th term of the following arithmetic sequence 3, 7,11,15,...

Answers

Answer:

19

Step-by-step explanation:

The sail of a boat is in the shape of a right triangle, as shown below:

The sail of a boat is a right triangle with an acute angle equal to 40 degrees and the side adjacent to the 40 degrees angle is

Which expression shows the height, in meters, of the sail? (6 points)

Select one:
a. 2 divided by sec 40 degrees
b. 2 cosec 40°
c. 2 sin 40°
d. 2 divided by cot 40 degrees

Answers

Answer:

D

Step-by-step explanation:

Answer: 2 divided by cot 40 degrees

Step-by-step explanation: ima nerd

can yall help its due in 30 minutes

Answers

Answer:

$570.00

Step-by-step explanation:

When the owner increases the value by 90 percent its value is $760. and taking off 25% ($190) would be $570.00

:))Hope this helped plz mark brainliest :))

Calculate the area of the shape below.

Answers

Answer:

24ft²

Step-by-step explanation:

divide up the shape:

big triangle:

(looking for base)

9.8²= 4² + b²

b  = 8.95ft

(finding area)

0.5*8.95*4 = 17.9ft²

small triangle:

(looking for base)

12-8.95=3.05ft

(finding area)

0.5*3.05*4 = 6.1ft²

Whole Shape:

17.9+6.1 = 24ft²

10 + 20 = 2(5 + __)

a
11
b
30
c
10
d
7

Answers

Answer:

C=10. They did distributive property. Hope this helped!

Step-by-step explanation:

Hope this helped you out a bit

2/3 + 4/5 × 1/2 alguien me puede ayudar porfavor? ._.​

Answers

Answer:

16/15 or 1 1/15

Step-by-step explanation:

I need help I don’t know what to do!?

Answers

Answer:

The slope is 4/3x

Step-by-step explanation:

We can easily find the slope, by looking at the difference between each number on the table. We can see that the x values are rising in 3's, and the y values are rising in 4's. From that we can find the slope, 4/3x, since the slope rises up positive 4, and runs positive 3.

EDIT: forgot the x after the slope

convert the fraction 4/11 to a decimal using long division​

Answers

Answer:

Step-by-step explanation:

Answer:

0.36

Step-by-step explanation:

I used the long division method.

Hope this helps:)

what is 5020 divide 110

Answers

Answer:

45.6363636 or 45.6

Step-by-step explanation:

Answer:

answer:it is 45.636

PLEASE HELP WILL MARK BRAINLIEST PLZ PLZ PLEASE!!

Answers

Answer:

1) C

2) B

3) A,B, and C

4) C

5) B

6) C

Step-by-step explanation:

Answer:

1. C

2. B

3. A, B, C

4. C

5. B

6. C

Step-by-step explanation:

1. You can remember the name by just looking at their positions- they alternate and they're on the exterior

2. They are supplementary meaning they add to 180°, set the angle measures up to 180 and solve for x!

76 + 2x = 180

2x = 104

x = 52

3. Equilateral trinagles have these qualities

4. Those hashes on the sides of the triangles signify those sides are the same length- that means the angles opposite of those sides share the same angle measure. If you know two angles are 35, and the last angle is 2x, you can set up an equation:

35 + 35+ 2x = 180

70 + 2x = 180

2x = 110

x = 55

5. That square means a right angle which equals  90°, like question 4, you set up an equation!

90 + 5x + 5x = 180

90 + 10x = 180

10x = 90

x = 9

6. Set up a proportion.

12 : 30 // 12(x) = 30, x = 2.5

8 : y // 8(2.5) = y, y = 20

HELP!!
Question 4 (1 point)
How likely is it for the spinner to land on a 3?

Impossible
Unlikely
Likely
Certain

Answers

Answer:

likely

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

What is the value of the expression r + 1,988 if r = 2,976?

Answers

Answer:

r=988

Step-by-step explanation:

r=988

Answer:

4,964

Step-by-step explanation:

if r= 2,975 and since you have to add r+1,988 the you add 2,975+1,988 that equals:4,964.

what type of transformation is shown​

Answers

Answer:

A reflection

Step-by-step explanation:

It has been mirrored.

In the figure, is an exterior angle to triangle .
(a) What is the angle measurement of Angle 3. Explain the angle relationship you used.
(b) What is the angle measurement of Angle 4. Explain the angle relationship you used.
(c) What is angle relationship between angles 3 & 4? What is the angle relationship between angles 1, 2, & 3? What do you notice that is similar between the two? What is different?
(d) The combination of which two angles in the triangle equal angle 4? Use your work from Part C to figure out why this is the case, and explain your conclusion.

Answers

Answer:

I don't have c but I do have a and b

Step-by-step explanation:

Part A)

Angle 3 is 103° because 77° + ∠3= 180° and  ∠3 = 180° - 77° = 103°

Part B)

Angle 4 is 77° because ∠3 + ∠4 = 180° and  ∠4 = 180° - 103° = 77°

                                    These are the answers for k12

The wrestling team wants to sell pies for a fundraiser. The cafeteria helped out by donating 2 pies. Each pie will be cut into 4 pieces. If the team wants to sell at least 32 pieces, how many pies must the wrestling team bake?

Answers

Answer:

The answer would be 8

Step-by-step explanation:

4x8=32

4 is the pieces of each pie

8 is how many pies

32 is how many pieces they need

I NEED HELP!!
What is the volume of this figure?
3 in
6 in
O 54 in2
O 169.56 in?
O 1,198.04 in
O 339.12 in

Answers

i think it’s the first option

Plz, help I have no clue how to solve this.

Answers

Answer:  Create equations. Top length=Bottom length

Left side = right side.

Combine like terms and rewrite the equations.  

Use the new equations to create a system of equations to solve for x and y.

Once you have x and y, you can substitute those in the expressions for the lengths of the parallelogram.

You should end up with top and bottom lengths of 10. The sides are 9.

Step-by-step explanation:

3x-5 = 18 -2y . Rewrite as 3x + 2y = 23

x+4 = 21 -3y    Rewrite as  x + 3y = 17

The system of equations is

3x + 2y = 23   and  x + 3y = 17 . To solve by substitution, multiply the second equation by -3   It becomes  -3x-9y= -51  Add the equations so the x terms cancel. Solve for y

3x + 2y = 23

-3x - 9y = -51

0  -7y  = - 28  Divide both sides by -7.   y = 4

Substitute 4 for y,  solve for x

x + 3(4) = 17

x + 12 = 17 . Subtract 12 from both sides   x = 5

Substitute the values of x and y in the expressions

Top: 3x-5    is 3(5) -5  becomes 10

Bottom: 18 -2y  is  18 - 2(4) becomes 10

Left:  x +4   is (5) + 4  becomes 9

Right:  21 - 3y  is  12 -3(4)  becomes 9

What is the value of x?

Answers

Answer:

I'm so sorry I don't know how to do this

Step-by-step explanation:

Other Questions
What should I do if my teacher is mentally abusing me? Should I just not care or just tell the principal? Given the lease terms below, what is the total price of this car if you buy itafter leasing, and you do not get the security deposit back?Terms: Length of lease: 36 months MSRP of the car: $21,400 Purchase value of the car after lease: $17,100 Down payment: $1,500 Monthly payment: $229 Security deposit: $350 Acquisition fee: $700Answer choices:A. $29,246B. $27,894C. $21,100D. $24,678 The product of 84.12 and which number will have three decimal places?4.2210.5114.16319.3 good at math? & can help!! please :)) 1. What are the two paragraphs about?2. Which conveyed positive message?3. Which conveyed the negative message?4. Which do you love to read? Why? paki sagot po nang maayos pls In an urban area, 31% of dog owners pay for someone to walk their dogs. Morgan asks a random sample of 50 dog owners in this urban area if they pay for someone to walk their dog. What is the probability that more than 30% of the owners in the sample pay for someone to walk their dog? A. 0.439 B. 0.519 C. 0.561 D. 0.586 help me please and thank you! if you help me I will give you 5 stars and brailiest _____plessy v. Ferguson helped to solidify the legal basis for what?a.Manifest b.The separate but Equal Doctrine c.The Truman DoctrineD.The Domino Theory According to Darwin, "Organisms produce more offspring_____A. than will survive to reproduceB.than plants doC. because they want toD. None are correct How many moles of O2 are needed to produce 2.5 moles of water? How would you restate prospero's words in Modern English when he refers to the green sour ringlets Which expression is the best estimate of 5 7/83 2/15? 7. Why did the economy of the South remain primarily agricultural?a. because of the intense demand for cotton by the northern factoriesb. because of the many miles of railroad linesc. because of the abolitionist movementd. because of the increase in cities and factories in the South find m Solve the system of equations using the elimination method and enter the value of y.4x - 5y = -9- 4x+y=-7y = Africa CivilizationsXxx what did you learn about the Kingdom of Kush, and its relationship to Ancient Egypt?Will give brainlist Which of the following are equivalent to 80 1/2 5 x (2+8) + (12-6/3) x2 Write an equation in point slope form that passes through the given point and has the given slope. Point = (-2, 5) Slope = 4