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
Vsevolod [243]
3 years ago
8

The bill for five hamburgers and four salads is $9.50. The bill for four hamburgers and five salads is $10.30. What would be the

bill for a hamburger and a salad?
Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
7 0

Answer: the bill for a hamburger is $0.7

the bill for a salad is $1.5

Step-by-step explanation:

Let x represent the bill for a hamburger.

Let y represent the bill for a salad.

The bill for five hamburgers and four salads is $9.50. This means that

5x + 4y = 9.5- - - - - - - - - - - - - - 1

The bill for four hamburgers and five salads is $10.30. This means that

4x + 5y = 10.3 - - - - - - - - - - - - - -2

Multiplying equation 1 by 4 and equation 2 by 5, it becomes

20x + 16y = 38

20x + 25y = 51.5

Subtracting, it becomes

- 9y = - 13.5

y = - 13.5/ - 9

y = 1.5

Substituting y = 1.5 into equation 1, it becomes

5x + 4(1.5) = 9.5

5x + 6 = 9.5

5x = 9.5 - 6 = 3.5

x = 3.5/5 = 0.7

You might be interested in
Find the area of the shaded region
nexus9112 [7]

Answer:

40

Step-by-step explanation:

area of shaded region = area of whole figure - area of non shaded region

area of whole figure: The whole figure is a rectangle

The area of a rectangle can simply be calculated by multiplying the width by the length

The given width is 10ft and the given length is 8ft

Hence area of whole figure = 10 * 8 = 80ft²

Area of non shaded region: the non shaded region also creates a rectangle

Like stated previously the area of a rectangle can simply be calculated by multiplying the width by the length

The given width is 5ft and the given length is 8ft

Hence, area of non shaded region = 5 * 8 = 40ft²

Finally we can find the area of the shaded region.

We can easily do this my subtracting the area of the nonshaded region from the area of the whole figure

If we have identified that the area of the whole figure is 80 and the area of the non shaded region is 40

Then, area of shaded region = 80 - 40 = 40ft²

6 0
2 years ago
A company has 7 male and 9 female employees, and needs to nominate 2 men and 2 women for the company bowling team. How many diff
lys-0071 [83]

Answer:

The team can be formed in 756 different ways

Step-by-step explanation:

This is a combination problem since we are to select a set of people from a group. Combination has to do with selection.

for example, if r number of object is to be selected from a pool of n objects, this can be done in nCr number of ways.

nCr = \frac{n!}{(n-r)!r!}

Now If A company has 7 male and 9 female employees, and needs to nominate 2 men and 2 women for the company bowling team, then this can be done in the following way;

7C2 * 9C2

7C2 = \frac{7!}{5!2!} \\= \frac{7*6*5!}{5!*2} \\= 7*3\\= 21ways\\\\similarly;\\\\9C2 = \frac{9!}{7!2!}\\9C2= \frac{9*8*7!}{7!*2} \\9C2 = 9*4\\9C2 = 36

7C2 * 9C2 = 21*36

= 756

The team can be formed in 756 different ways

5 0
3 years ago
What issue did the great compromise resolve
kondor19780726 [428]

Answer:

The issue of the great compromise resolved representation.

Step-by-step explanation:

8 0
3 years ago
Who loves beetle juice
gtnhenbr [62]

Answer:

i literally just finished watching it lol

7 0
3 years ago
Read 2 more answers
Can anybody please help me with question 1 please...I would really appreciate it so much
In-s [12.5K]

Answer:

The total time the water balloon is in the air is 8 seconds. The balloon reaches the maximum height of 25 fee after 3 seconds. The water balloon has a height of 24 feet at 2 seconds and a half.

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • A publishing company is going to have 24,000 books printed. There are between 3 and 4 books out of every 3,000 printed that will
    11·1 answer
  • Michelle has a $100. She wants to purchase paper pins ($20) and file covers ($20) and paper weights. each paper weight costs $10
    11·1 answer
  • Very numbers suck as distances in space and very numbers
    13·1 answer
  • A square has side length of 10 units. find the approximate length of the diagonal.
    15·1 answer
  • Consider the sequence: 3, 8, 13, 18, 23, ...The recursive formula for this sequence is:an = an-1 + 5In a COMPLETE sentence, expl
    6·1 answer
  • Anyone know the answer??
    7·1 answer
  • Simplify log 4 - log 8
    8·1 answer
  • Let f(x) = x2 and g(x) = x − 3. Evaluate (g ∘ f)(0).
    6·1 answer
  • The ratio of mango ice cream to strawberry ice cream is 2 : 5 .Total no. of ice cream is 49.what is the no. of strawberry ice cr
    13·1 answer
  • Is (3,8) a solution to the inequality 14x + 12y = 12?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!