All categories

3 years ago

Please help with question

Mathematics

1 answer:

Step2247 [10]3 years ago

8 0

To solve this problem you must apply the proccedure below:

1. Let's call:

x: hot dogs.
y: hamburguers.

2. Then, you must make a system of equations, as below:

5x+4y=12.25 (i)
4x+5y=12.50 (ii)

3. Now, you can solve the system of equation as below:

5x+4y=12.25
x=(12.25-4y)/5

4x+5y=12.50
4((12.25-4y)/5)+5y=12.50
y=1.5

4x+5y=12.50
4x+5(1.5)=12.50
x=1.25

4. Therefore, the answer is:

The cost of one hot dog is $1.25 and the cost of one hamburguer is $1.50

You might be interested in

Helppppppp pleaseeee it’s mathhhhhh

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

6x+25=10x-11

-4x=-36

x=8

6(8)+25

48+25=73

I am not sure on this one but hope I helped

3 0

2 years ago

The product of b and 7

pshichka [43]

Answer:

i need help with my math homework someone please help mee

Step-by-step explanation:

4 0

2 years ago

2+2= ??????? Will give brainlyest answer!!!!!!

Alex17521 [72]

Answer: fish

Step-by-step explanation: 2+2=fish

6 0

3 years ago

System w/Elimination -2x-9y=-25 -4x-9y=-25

Lerok [7]

x=0 and y= $\frac{25}{9}$

Step-by-step explanation:

We need to solve the system by elimination and find values of x and y

$-2x-9y=-25\,\,\,(1)\\-4x-9y=-25\,\,\,(2)$

Subtract eq(1) and eq(2)

$-2x-9y=-25\,\,\,(1)\\-4x-9y=-25\,\,\,(2)\\+\,\,\,+\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\---------\\2x=0\\x=0$

Now Multiply equation (1) by 2 and subtract with eq(2)

$-4x-18y=-50\\-4x-9y=-25\\+\,\,\,\,\,\,+\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\--------\\-9y=-25\\y=\frac{-25}{-9}\\y=\frac{25}{9}$

So, x=0 and y= $\frac{25}{9}$

Keywords: system by elimination

Learn more about system by elimination at:

#learnwithBrainly

5 0

3 years ago

This is my last quiz question, Please help <3

Mila [183]

The measures of the angles of a triangle add up to 180 degrees.
This is true of all triangles.

You have two given angles of triangle PQR.
They are 24 degree and 100 degree.
What do those measures add up to?

What is 100 + 24? = 124


When you add the measure of the third angle to 124, you must get 180.
To find the measure of the third angle, just do 180 - 124.
What do you get?


180 - 124 = 56
That means the third angle of triangle PQR measures 56 deg.
Now we know the measures of all three angles of triangle PQR: 24, 100, 56.
Triangle RST has two angles that measure 24 deg. and 56 deg.
Since two angles of triangle PQR are congruent to two angles of triangle RST, the triangles are similar.

6 0

3 years ago