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
Lisa [10]
3 years ago
7

3 packets of French fries, 2 cheeseburgers, and one drink cost $10.95. 1 packet of French fries, 2 cheeseburgers, and 3 drinks c

ost $11.25. Find the price of 1 packet of French fries, 1 cheeseburger, and one drink?
Mathematics
1 answer:
zhuklara [117]3 years ago
6 0

Answer:

The price of 1 packet of French fries, 1 cheeseburger, and one drink cost $5.55

Step-by-step explanation:

Let

x ----> the price of 1 packet of French fries

y ---> the price of 1 cheeseburger

z ---> the price of one drink

we know that

3x+2y+z=10.95 ----> equation A

x+2y+3z=11.25 ---> equation B

Adds equation A and equation B

3x+2y+z=10.95\\x+2y+3z=11.25\\------------\\3x+x+2y+2y+z+3z=10.95+11.25\\4x+4y+4z=22.2

Divide both sides of the equation by 4

x+y+z=5.55 ----> equation C

The equation C means ----> The price of 1 packet of French fries, 1 cheeseburger, and one drink cost $5.55

You might be interested in
What is the surface area?<br> 26 cm<br> 26 cm<br> 24 cm<br> 28 cm<br> 20 cm<br> ? square centimeters
Marina86 [1]
24 try this one if it’s work
8 0
3 years ago
Solve the equation below and record solution. <br> Example Solution: x = ______<br> 35 = 1.5x - 10
Oliga [24]

Answer:

x=30

Step-by-step explanation:

Let's solve your equation step-by-step.

35=1.5x−10

Step 1: Flip the equation.

1.5x−10=35

Step 2: Add 10 to both sides.

1.5x−10+10=35+10

1.5x=45

Step 3: Divide both sides by 1.5.

1.5x÷1.5=45÷1.5

x=30

4 0
3 years ago
Read 2 more answers
Use the function below to find
il63 [147K]

Answer:

f(x) =1/3 × 4^x

f(4) = 1/3 × 4⁴

= 1/3 × 256

= 256/3

Hope this helps

8 0
3 years ago
Can I get help with these 2 problems?
Damm [24]

Answer:

answer is 456986973*'/96659

7 0
2 years ago
Read 2 more answers
The following data were collected by counting the number of operating rooms in use atTampa general Hospital over a 20-day period
arlik [135]

Answer:

a)

Operating room x    1         2      3       4

P(x)                          0.15  0.25  0.4   0.2

b)

The graph of probability distribution is in attached image.

c)

All the probabilities lies in the range (0 to 1) and the probabilities add up to 1 so, the computed probability distribution is the valid probability distribution.

Step-by-step explanation:

Number of operating rooms   Days

1                                                  3

2                                                 5

3                                                 8

4                                                 4

a)

Sum of frequencies=1+2+3+4=10

Operating rooms x   frequency f  Relative frequency

1                                    3                    3/20=0.15

2                                   5                   5/20=0.25

3                                   8                   8/20=0.4

4                                   4                   4/20=0.2

So, using the relative frequency approach, a discrete probability distribution for number of operating rooms in use on any given day is

Operating room x    1         2      3       4

P(x)                          0.15  0.25  0.4   0.2

b)

The graph of probability distribution is in attached image.

c)

There are two conditions for a probability distribution to be valid

1. All probability must ranges from 0 to 1.

2. All probabilities must add up to 1.

We can see that all the probabilities lies in the range (0 to 1), so, condition 1 is satisfied.

For condition 2,

sum[p(x)]= 0.15+0.25+0.4+0.2=0.4+0.6=1.

As the probabilities add up to 1, so the condition 2 is also satisfied.

Thus, the computed probability distribution is the valid probability distribution.

7 0
3 years ago
Other questions:
  • The equation h(t)=−16t2+19t+110 gives the height of a rock, in feet, t seconds after it is thrown from a cliff. What is the init
    6·2 answers
  • What is the total length of weather stripping needed for 12 windows that each measure 90 cm by 12?
    5·1 answer
  • PLS HELP!<br><br> x^2 + 5x +5
    10·1 answer
  • area of ceiling is 256square feet what is the length of wooded border that I will need to completely surround the square ceiling
    6·1 answer
  • BRAINLEIST (if you give me one) all you have to do is be the top 5 to comment/answer first and these free brainleist are yours!!
    13·2 answers
  • Which of the following are true of linear functions?​
    5·1 answer
  • Answer the following questions.
    7·1 answer
  • write a two-step equation that can be solved using the addition property of equality and the division property of equality.​
    6·1 answer
  • ~!!!!HELPPPPPPP IM IN 7TH GRADE LEARNING 9TH AND 8TH GRADE MATH !!!!~
    12·1 answer
  • Solve the equation for x by graphing .
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!