1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivanzaharov [21]
3 years ago
15

At a concession stand, seven hot dog(s) and four hamburger(s) cost $21:25, four hot dog(s) and seven hamburger(s) cost $22.75 Fi

nd the cost of one hot dog and the cost of one hamburger
Mathematics
2 answers:
Alina [70]3 years ago
7 0

Step-by-step explanation:

If 4 hamburger = $21.25

1 hamburger = x

Cross multiply

4 x x = $21.25 x 1

4x = $21.25

Devide both side with the coefficient of x

4x/4 = $21.25/4

X = $5.3125

Therefore 1 hamburger cost $5.31

If 4 hotdogs = $22.75

1 hotdog = y

Cross multiply

4 x y = $22.75 x 1

4y = $22.75

Devide both sides with the coefficient of y

4y/4 = $22.75/4

Y = $5.6875

Therefore one hotdog cost $5.69

scoundrel [369]3 years ago
6 0

Answer:

See below ↓↓↓

Step-by-step explanation:

<u>Given</u> :

  • 7 hot dogs + 4 hamburgers = $21.50
  • 4 hot dogs + 7 hamburgers = $22.75

<u>Let's set some variables.</u>

  • hot dogs = x
  • hamburgers = y

<u>So, our equations are</u> :

  1. 7x + 4y = 21.50
  2. 4x + 7y = 22.75

<u>Mulitply equation #1 by 7 and equation #2 by 4.</u>

  • 49x + 28y = 150.50 (Equation 3)
  • 16x + 28y = 91.00 (Equation 4)

<u>Subtract equation 4 from equation 3.</u>

  • 49x - 16x + 28y - 28y = 150.5 - 91
  • 25x = 59.5
  • x = <u>$2.38 [cost of one hot dog]</u>

<u></u>

<u>Substitute value of x in equation 4.</u>

  • 16(2.38) + 28y = 91
  • 38.08 + 28y = 91
  • 28y = 52.92
  • y = <u>$1.89 [cost of one hamburger]</u>

<u />

You might be interested in
How does the graph of f(x) = (x − 9)4 − 3 compare to the parent function g(x) = x4?
Paraphin [41]

Answer:

The graph is shifted right by 9 units and down by 3 units

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Explain in words how to find the product of -4 (-1.5) using a number line.where do you end up
Ierofanga [76]

Answer:

To multiply two minus numbers they  will result as a positive number.

the product of any numbers when there is a negtive will always have 2 negtives invlved form three numbers including the answer.

-4 x -1.5 is the same as 4 x 1.5

the answer is  6

Three numbers like -1 x  4 will also be 2 numbers of negative.

= -4

We change this to -4 x 1.5 and shows the answer as -6

But the question had 2 negative numbers already and the answer is just positive 6.

8 0
3 years ago
Read 2 more answers
1)<br> What is the value of x?<br> 150°<br> 3x
Leona [35]
The value of x is usually 1, most of the time x is just used as a place holder
3 0
3 years ago
Miranda needs to buy a bottle of honey. She notices that she can pay $4 for a
vitfil [10]

Answer:

The better one is $6 for 24 oz bottle

Step-by-step explanation:

If it cost 4 dollars for a 12 oz bottle and that would cost 1 dollar per 3 oz but for the 6 dollar for a 24 oz bottle it would be 1 dollar per 4 oz so 6 dollars for a 24 oz bottle is better!

5 0
3 years ago
Please help me in this question.Tell me if it is good. And if it is not good then do it for me please.
Orlov [11]

Answer:

Y = 170, Z = 64.

Step-by-step explanation:

Since y is the external angle to x, which you got right, it is in fact, 180-10, = 170 degrees. And since z is the external to our unknown angle, that means it is equal to the sum of the other two angles in the triangle. That means z is 54 + 10, which is 64.

6 0
3 years ago
Other questions:
  • Factor Factor -2bk 2 + 6bk - 2b. ill give ya 14 points !
    7·2 answers
  • 15 &lt; x-3<br> What the answer
    12·2 answers
  • A family is taking a cross-country trip by car.they drive at an average speed of 55 mi/h, and their goal is travel at least 400
    6·2 answers
  • PLZ ANSWER ILL GIVE BRAINLIEST!!! Finding the Slope of a Line from a Graph On a coordinate plane, a line goes through points (ne
    9·2 answers
  • Find the balance in the account after the given period. $3500 deposit 6.75% compounded monthly, after 6 months
    8·1 answer
  • Explain how to find the slope of a line that passes through the points (-3, 1), (1, 9. Find the slope
    8·1 answer
  • A group of students were asked whether they take French class, Art class, both classes or neither classes. The table shows the p
    6·2 answers
  • Simplify: [3(2a)3/2] 2
    11·1 answer
  • Two dice are thrown, 1 is the event that the sum of their
    12·1 answer
  • Yal.................................................................
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!