Mathematics High School

A group of friends go out for lunch. If they order 2 hot dogs and 4 cheeseburgers, the bill will
be $23.50. If they order 5 hot dogs and only 1 cheeseburger, the bill will be $18.25. What is
the cost of a hot dog?

Answers

Answer 1

Answer:

$2.75 = cost of a hot dog

$4.50 = cost of a cheeseburger

Step-by-step explanation:

Let x = cost of a hot dog

     y = cost of a cheeseburger

(1)      2x + 4y = 23.5           (2)    5x + y = 18.25    

                                                           y =  18.25 - 5x

        2x +4(18.25 - 5x) = 23.5

         2x + 73 - 20x = 23.5

         -18x + 73 = 23.5

                  -18x = -49.5

                       x = 2.75                       y = 18.25 - 5(2.75)

                                                           y = 18.25 - 13.75

                                                           y = 4.50

$2.75 = cost of a hot dog

$4.50 = cost of a cheeseburger

Related Questions

A ball is rolled uphill a distance of 4 meters before it slows, stops, and begins to roll back. The ball rolls downhill 12 meters before coming to rest against a tree. What is the ball's displacement?

Answers

Answer:

8

Step-by-step explanation:

A ball is rolled uphill a distance of 4 meters

The ball rolls downhill 12 meters before coming to rest

Therefore the ball displacement can be calculated as follows

= 12-4

= 8

Hence the displacement is 8

Answer:

8

Step-by-step explanation:

Kevin cuts four pieces of wood into fourths. How many fourths does he have?

Answers

Answer:

16/4

Step-by-step explanation:

BRAINLIEST?!

Answer:

16 fourths

Step-by-step explanation:

If one piece of wood is cut into fourths then you have 4 fourths. If you multiply that by 4 you have 16 fourths

what are the solutions if any to f(x)=g(x)
i’ll give branliest

Answers

Answer:

The solution of the equation f(x) = g(x) is the set of all x for which the graphs of f and g intersect.

Step-by-step explanation:

A bag of Super Dog dog food, at $12.85, is one third the price of a bag of Power Dog dog food. Write and solve a division equation to find the price of a bag of Power Dog dog food. How much does a bag of Power Dog food cost?

Answers

Answer: $38.55

Step-by-step explanation:

Price of super dog dog food = $12.85

We can infer from the question that the bag of Super Dog dog food, costs $12.85, which is one third the price of a bag of Power Dog dog food.

Let the price of the Power Dog dog food.be represented by x. Therefore,

1/3 × x = 12.85

x/3 = 12.85

x = 12.85 × 3

x = 38.55

The price of a bag of Power Dog dog food is $38.55

can some one help me with this

Answers

Answer:

A

Step-by-step explanation:

Answer:

C- 30

Step-by-step explanation:

When rolling a die, theres a 1 in 6 chance you will roll any number. So take the total number of times they rolled it, 180, and divide it by 6.

What should i do she’s always ignoring me and when she talks to me it’s so dry the only time she seems interested in talking to me is on some days and mostly at night

Answers

Either she lowkey doesn’t wanna be your friend or she’s going through something mentally.

Javon's first 3 quizzes had a mean score of 90%. If he scores 46% on his next quiz, what will be his mean quiz score for these 4 quizzes?

Answers

Answer:

[tex]Mean = 79\%[/tex]

Step-by-step explanation:

Given

[tex]Mean_3 = 90\%[/tex]

[tex]4th\ score =46\%[/tex]

Required

The mean of the 4 subjects

Mean is calculated as:

[tex]Mean = \frac{Total}{n}[/tex]

For: [tex]Mean_3 = 90\%[/tex]

[tex]Mean = 90\%\ n = 3[/tex]

So:

[tex]90\% = \frac{Total}{3}[/tex]

[tex]Total = 3 * 90\%[/tex]

[tex]Total = 270\%[/tex] --- this is the total in the 3 subjects

The mean of the 4 subjects is:

[tex]Mean = \frac{Total\ of\ 4\ subjecte}{4}[/tex]

[tex]Mean = \frac{270\% + 46\%}{4}[/tex]

[tex]Mean = \frac{316\%}{4}[/tex]

[tex]Mean = 79\%[/tex]

-25 – (-13) =




mathematics

Answers

It would be -12, because you have to use keep change change

-1/4 divided by -4/7

Answers

Answer:

7/16

Step-by-step explanation:

Write this division problem as:

 -1

-----

  4

======

  -4

 -----

   7

Recall that we can divide by a fraction by inverting the fraction and then multiplying instead.  The above expression becomes:

 -1        7           7

------ * ------ = ---------

  4       -4          16

A coach is ordering shirts for a team.

• The coach pays a one-time fee of $24.
• The coach also pays $8 for each shirt ordered.

Which function can be used to find c, the total amount the coach pays in dollars when k shirts are ordered?

Answers

Answer:

c(k) = 8k + 24

Step-by-step explanation:

Filler sentence...

If 7 is P percent of 13, then P is a number between

Answers

Where’s the question if

Answer:

25 and 50

Step-by-step explanation:

Sketch the triangle in the coordinate plane whose vertices are (0, -2), (2, 3).
and (4,-2). Find its area.
A. 10 sq. units
B. 15 sq. units
C. 20 sq. units
D. 30 sg, units

Answers

B is the right thing 15 squints

help i forgot how to do this

Answers

I think it’s Y is 5 and x is 4/1

|-3| = ? I will give brainliest whoever gets it right

Answers

It’s 3 because the absolute value of any number is always positive

Have a great day :)

Answer:

3

Step-by-step explanation:

the absolute value of |-3| is 3

What value of c makes the equation true?
15+c-1 = 23
А
7
B
37
C) 14
D
9

Answers

The answer to this is C

Frank made cookies for his class. He gave away half of them in his first period class, but then his mom dropped off 12 more cookies. If he now has 32 cookies, how many did he start with?

Answers

Answer:

Work backwards to solve this problem.

If he ends with 32 cookies, then subtract 12. That gives 20 cookies. 20*2 is 40, so now he has 40 cookies.


The equation 2(6+x)=14+2x has no solution. Is this statement true or false?

Answers

Answer:false

Step-by-step explanation:

which of the following best describes the differences between simple and compound interest?

a. simple interest is easier to calculate than compound interest

b. simple interest earns interest on the previous interest earned only

c. compound interest earns interest on the principal plus any previous interest earned

d. compound interest earns interest on the principal only

Answers

Answer:

simple interest is easier to calculate than compound interest

Step-by-step explanation:

Please help, thank
You

Answers

. The answer is 9.0
C=2(3.142)(5)
C=31.42

A=3.142(5^2)
A=78.53

Working alone it takes mark 7 hours to mop the whole house it takes sue 9 determine to the nearest hundredth of the hour how long it will take then to mop the house together

Answers

Answer:

3.9375 hours

Step-by-step explanation:

Working alone it takes mark 7 hours to mop the whole house it takes sue 9 determine to the nearest hundredth of the hour how long it will take then to mop the house together

This is calculated as

1/Time it would take them to work together = 1/ Number of hours Mark mopped + 1/ Number of hours Sue mopped

= 1/T = 1/7 + 1/9

Lowest common denominator = 63

1/T = 9 + 7/63

1/T = 16/63

T = 63/16

T = 3.9375 hours

Count to find the slope. Write your answer clearly.​

Answers

Answer:

[tex]-\frac{1}{4}[/tex]

Step-by-step explanation:

To find the slope by graph, we can use [tex]\frac{rise}{run}[/tex]

The point (5, -3) rise 1 and run 4 to get to (1, -2).

However, the function run from the upper quadrant to the bottom quadrant making it negative.

-1/4 is the slope of the equation. reading from left to right is it is going down it is negative. also remember rise over run. go up then over. or down then over if it is a negative slope lol

what does 2 3/4 and 3 1/8 look like as a decimal?

Answers

Answer:for 2 3/4 as a decimal is 0.75 and for 3 1/8 its 3.125

318 is 3.125 as a decimal and 312.50% as a percentage.

Step-by-step explanation:Hope this helped u also may i plz have brainlist?

If a right triangle has sides 9 and 12, what is the length of the third longest side

Answers

Answer:

15 cm

Step-by-step explanation:

Using Pythagoras Theorem ([tex]a^{2}[/tex]+[tex]b^{2}[/tex]=[tex]c^{2}[/tex])

[tex]x^{2}[/tex] = [tex]9^{2}[/tex] + [tex]12^{2}[/tex]

[tex]x^{2}[/tex] = 81 + 144

[tex]x^{2}[/tex] = 225 = [tex]\sqrt225[/tex]

[tex]x[/tex] = 15 cm


HELPP ILL GIVE BRAINLIST

The pool shown below is drawn to scale. If the actual diameter of the pool is 16 feet, then what is the actual depth of the pool?
1.5 cm
4 cm
A
1.5 feet
B
6 feet
С
10.67 feet
D
24 feet

Answers

Answer:

b

Step-by-step explanation:

b is letter leytyer is b

6.) Ryan works at Best Buy and earns $12.00 an hour. His salary is
increased to $13.50 an hour. What was the percent increase of his raise?
percent

Answers

Answer:

$1.50

Step-by-step explanation:

If you had $12.00 you should have to add a dollar and 50 cents.

It went up a total percent of 1.5%

Pls help with the matching

Answers

12-y=9
3x-y=21
4y-10=2
1/4xy=6

Which of these numbers is between 2 and −3 on the number line? A. −4 B. 3 C. −2 D. −5

Answers

Answer:

c

Step-by-step explanation:

Describe the translation that maps ABCD onto A’B’C’D’

Answers

One is negative the other is positive, the shapes haven’t changed they are the same

solve for x
similar triangles advanced

Answers

Answer:

x = 2.57

Step-by-step explanation:

6/x = 7/3

7x = 18

x = 2.57

check:

if x = 2.57

then:

2.57/6 = 3/7

0.4283 = 0.4283

that checks as correct

What value of x satisfies the equation below?
[tex]\frac{-2x - 6}{5} = 4[/tex]

Answers

Answer: -13

Step-by-step explanation:

1. Isolate x: move 5 to the otherside

=> -2x-6=4*5 => -2x-6=20

2. Move 6 to the otherside: -2x=20+6 => -2x=26

3. Divide both sides by -2

=> x=26/-2 => x=-13

Have a nice day! :D

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