Mathematics High School

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

How many groups of 3/4 are in each of the following quantities?

Answers

Answer:

where are the quantities?

Find the coordinate point for D that would make ABDC a rhombus.
Point A (2,2)
Point B (3,4)
Point C (4,1)
Point D (?)

A. (5,4)
B. (5,2)
C. (5,3)
D. (3,0)

Answers

Answer:

(5,3)

Step-by-step explanation:

I took the test and go it right!

The coordinate point for D is (5, 3). Therefore, option C is the correct answer.

What is a rhombus?

A rhombus can be defined as a special parallelogram as it fulfills the requirements of a parallelogram, i.e. a quadrilateral with two pairs of parallel sides. In addition to this, a rhombus has all four sides equal just like a square. That is why it is also known as a tilted square. Look at the image below to understand the relationship of rhombus shape with parallelogram and square.

Given that, Point A (2,2), Point B (3,4) and Point C (4,1)

The coordinate point for D that would make ABDC a rhombus.

So, the coordinate point for D is (5, 3).

Therefore, option C is the correct answer.

Learn more about the rhombus here:

https://brainly.com/question/27870968.

#SPJ2

5/12 x 3 plz help me

Answers

Answer:

1 1/4 or 1.25

Step-by-step explanation:

Have a nice day

How is algebra advancing human knowledge and technological innovation?

Answers

Many people believe that they can't do anything to protect their privacy online, but that's not true. There actually are simple steps to dramatically reduce online tracking.

Find the radius of the circle whose equation is x² + y² = 4.
4
2
16

Answers

Answer:

I love algebra anyways

The ans is in the picture with the steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Four friends were born in consecutive years. The sum of their
ages is 94. What is the age of the oldest friend?

Answers

Answer:

Step-by-step explanation:

Since they were born on consecutive years, their ages are 4 consecutive whole numbers. Let the lowest age be x. Then the other ages are x + 1, x + 2, and x + 3.

Now we add the 4 expressions and set the sum equal to 94.

x + x + 1 + x + 2 + x + 3 = 94

4x + 6 = 94

4x = 88

x = 22

The youngest one is 22.

The oldest one is

x + 3 = 22 + 3 = 25

Answer: 25

WOWOWOWOWLWLWLWKWKWKWKWLWL

Answers

Answer:

chicken nugget

Step-by-step explanation:

8. The fare for riding in a taxi is a $2 fixed charge and $0.30 per mile. The fare for a ride of d
miles is $8.65. Solve for d?

Answers

Answer:22.17

Step-by-step explanation:

8.65-2= 6.65

6.65/.30= 22.16666667

Round it

22.17 miles (also might round it to a while number i don’t know which they want so it could be just 22)

Item 5
On a scavenger hunt, you find 16 out of 25 objects. Write "16 out of 25" as a fraction, a decimal, and a percent.
Fraction:

Decimal:

Percent:
I need help ASAP

Answers

Answer:

16/25. .64. 64%

Step-by-step explanation:

the fraction should be pretty self explanatory

the decimal you just divide 16 by 25 and for the percentage its out of 100 basically so 64 percent

A car travels 15 km in 13 minutes.
What is its average speed in km/h?
Give your answer rounded to 1 decimal place.

Answers

Answer:

69.2km

Step-by-step explanation:

15km ÷ 13 mins = 1.153km (Average speed)

1 hour = 60mins

1.153km x 60 = 69.18km (Average speed in km/h)

69.18km = 69.2km (Rounded to 1 dp)

Write the equation of the line that has a slope of four and passes through the point 6,5

Answers

Answer:

4x-y=19, y=4x-19

Step-by-step explanation:

I learned a really quick way to do these in geometry.

Let's use standard form or ax+by=c.

Slope of 4: 4x - y = c.

Passes through point 6,5.

4(6) - 5 = c

c= 24-5

c=19

4x-y=19

y=4x-19

Help with this please!

Answers

Hello,

No, this is NOT a proportional relationship.

Have a great day/night and stay safe! :)

Answer:

Draco is hot and sodapop is aswell Ig

Step-by-step explanation:

i dont know how to do this please help

Answers

Easy. Y=64x+12 I don’t know if this is standard form but

Algerba 1 , stuck on this :/

Answers

Answer:

neither is right

Step-by-step explanation:

it should factorize to (8x + 12) (x + 1)

Needed ASAP!! I will give brainliest if all completed.

Answers

#2 is slope 1/3 and t intercept of 6 if I’m not mistaken

2. Slope: 3 Y: 6
3. Slope: 4/5 Y: None
4. Slope: - 3/4 Y: 1

Short Answer
1. What is the domain and range for the parent function of g(x) = x+1?

Answers

Answer:

Domain= {XER} Range= {YER}

Step-by-step explanation:

This is a line equation. Lines continue infinitely in both the horizontal direction and vertical direction, so that means that the domain and range are both a set of all real numbers.

Determine if the linear equations are parallel, perpendicular, or neither.

y = - 2x, 2y = x, 4y = 2x + 4

a
perpendicular
b
neither
c
parallel

Answers

Answer:

C. Neither

Step-by-step explanation:

The first equation is

This equation is already in the slope-intercept form;

The slope of this equation is 2.

The second equation is .

This equation is also already in the slope-intercept form.

The slope of this equation is .

Since the two slopes are not the same, the two lines are not parallel.

If these two lines are perpendicular, then the product of their slopes is -1.

But which is not equal to -1.

Therefore the two lines are also not perpendicular.

The correct choice is C.

2. Ajar contains 10 marbles, 6 marbles are red, and 4
marbles are blue. If 2 marbles are chosen one at a time
without replacement, what is the probability that the first
marble will be blue and the second marble will be red?
A: 3/16 B: 6/25 C: 1/8 D : 12/45
Independent or Dependent:
Final Answer:

Answers

Answer:

Step-by-step explanation:

Note that there are 16 total marbles. A is simply a set of sequential events. On the first, you have 10/16 chances to draw a red. Supposing this red is not replaced, the chance of drawing a second red will be 9/15; therefore, the probability of A is (10/16) * (9/15) = 0.375. Event B is translated into 2 events: Blue + (White or Red) or (White or Red) + Blue. The probabilities of each of these events, added together would be (2/16) * (14/15) + (14/16) * (2/15) = 0.2333333333; therefore, A is more probable.

Is x ^ 2 + y ^ 2 = 6 a function?

Answers

Answer:

not a function

Step-by-step explanation:

for example

In order for an equation to represent a function any single value of x must have at most one corresponding value of y which satisfies the equation.

For x2+y2=9

XXXXif (for example) x=0

XXXXthere are two values for y (namely +3 and −3) which satisfy the equation

and therefore the equation is not a function.

Please help me with this I will give brainliest

Answers

Answer:

5x = 34.5

34.5 ÷ 5 = x

Triangles ABC and DEF are similar find d

Answers

Answer:

D equals 12; just multiply 6×2

Answer:

b: 12

Step-by-step explanation:

Write an integer between 1.6 and 3.7

Answers

2 is a whole number between 1.6 and 3.7

Answer:

2 and 3

Step-by-step explanation:

and integer is a positive or negative WHOLE NUMBER it is not a fraction or a decimal.

PLEASE HELP ASAP!!!!!!

Answers

Answer:

answer is c

Step-by-step explanation:

SOMONE PLEASE HELP ME ASAPPPPPPPP!!!!!!!!! I WILL GIVE YOU A GOOD RATE AND MARK YOU THE BRAINLIEST JUST ANSWER THIS CORRECTLY AND ASAPPPPP!!!!!!! PLEASE!!!!!!!!!

Answers

since she paid $5 admission subtract it from $7.25

that is $2.25

then 2.25/ 0.75 and its 3

3 hours

Answer:

she was there for 3 hours

Step-by-step explanation:

0.75h +5.00 = x

0.75(3)+5.00 = 7.25

{(–4, 6), (6, 5), (–2, –3), (0, –7), (2, 1)}

Answers

Answer:

Yes, its a function

Step-by-step explanation:

50 dividido 11 con la explicación

Answers

4.54 porque 50 le entra a 11 4.54 veces

Jose rented a truck for one day. There was a base fee of $13.50, and there was an additional charge of 8 cents for each mile driven. The
total cost, C (in dollars), for driving x miles is given by the following.
C=0.08x+13.50

What the total rental cost if Jose drove 30 miles

Answers

Answer:

2.4+13.50=15.90

Im pretty sure

Im sorry if I was wrong

Step-by-step explanation:

Answer:

15.90

Step-by-step explanation:

if Jos drove 30 miles x is equal to 30 so multiply 0.08 by 30 to get 2.40 then add the base fee to the miles driven fee and the total cost is 15.90.

C= 0.08x + 13.50

C= 0.08(30) + 13.50

C= 2.40 + 13.50

C= 15.90

What type of solution do the two lines show?

Answers

Answer:

No solution.

Step-by-step explanation:

The two lines are parallel and will never meet. Therefore, they have no solution.

The lines show no solution

what is a negative number that is greater than -10?

Answers

Answer:

-5

Step-by-step explanation:

-9

explanation: simple

Evaluate the following expressions given x=6 and y=-3

Answers

[tex] \purple{5 \times 6 - 4 \times ( - 3)}[/tex]

[tex] = 30 + 12[/tex]

[tex] \blue{ = \boxed{42}}[/tex]

[tex] \purple{ {6}^{2} + \frac{6}{ - 3} }[/tex]

[tex] = 36 - 2[/tex]

[tex] \blue{ = \boxed{34}}[/tex]

[tex] \purple{(6 - 5 {)}^{3} + {( - 3)}^{2} }[/tex]

[tex] = {1}^{3} + 9[/tex]

[tex] = 1 + 9[/tex]

[tex] \blue{ = \boxed{10}}[/tex]

=============================

Hope it helps

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Other Questions

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