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
svlad2 [7]
4 years ago
11

Farmer brown had ducks and cows. one day she noticed that the animals had a total of 12 heads and 44 feet . how many of the anim

als were ducks and how many were cows?
Mathematics
1 answer:
stiv31 [10]4 years ago
8 0
Ducks have 1 head and 2 feet, where cows have 1 head and 4 feet.

Let's assume that the farmer has x numbers of ducks and y numbers of cows.

It is known that the animals he was having had the total of 12 heads and 44 feet. So, according of this

x + y = 12 (number of heads)
2x + 4y = 44 (number of feet)

Since, x+y=12, multiplying both side by 2 we get 2x+2y=24, or equivalently 2x=24-2y. Substituting this to the second equation we get

(24-2y) + 4y = 44

So, combining the y terms

24 + 2y = 44

Now substracting 24 from both sides

2y = 44 - 24 = 20

So, dividing both sides by 2

y = 10

So, there were 10 cows that the farmers had. Also, recalling that there was a total of 12 heads, and since the farmer had 10 cows, then there should be 2 ducks.

Thus, the farmer had 10 cows and 2 ducks.
You might be interested in
Chandra runs 10 miles. After every two miles, she checks the time. The scatter plot shows her results.
masya89 [10]

Answer: 7.5

Step-by-step explanation:

Per 2 mile she ran 15m

Per one it’s 7.5m

3 0
3 years ago
What is the equation, in point-slope form, of the line that is
Darina [25.2K]

Answer:

The second equation in attached picture

Step-by-step explanation:

Since the slope of the given line is 3/2, then you take the negative reciprocal, which is -2/3. So the second equation in your attached picture is correct.

6 0
4 years ago
2+2x=19+2x solve for x
denpristay [2]

2+2x= 19+2x

<u> -2x= -2x</u> (they both cross out)

2= 19

there is no solution for x

5 0
3 years ago
Read 2 more answers
(20 points)
Aleksandr [31]

Answer:

23 625

Step-by-step explanation:

42000 - 25\% = 31500 \\ 31500 - 25\% = 23625

8 0
3 years ago
Read 2 more answers
HELP!! I WILL MARK YOU BRANLIEST IF YOU RESPOND THE FASTEST AND IF ITS CORRECT :)
Kruka [31]

Answer:

45

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
Other questions:
  • N a hearing test, subjects estimate the loudness (in decibels) of a sound, and the results are: 68, 67, 70, 71, 68, 75, 68, 62,
    14·1 answer
  • Perform the operation and write the result in standard form.<br> (4 − 3i)2
    13·1 answer
  • The area of the rectangle in the figure is 24a^2b^3 square units. Find the width of the rectangle
    5·1 answer
  • 0.3v + 0.1 = 2.2<br> what’s the equation
    10·2 answers
  • I need help with this problem
    11·2 answers
  • Put them in the order from least to greatest. You can use the number line to help.
    12·1 answer
  • Find the whole number quotient and remainder of 201 divided by 12
    11·1 answer
  • Which linear inequality is represented by the graph?
    8·2 answers
  • Lynn can wash 95 cars in 5 days.<br><br> How many cars can Lynn wash in 11 days?
    14·1 answer
  • Is 4b^2 + 40b + 20 a perfect square?<br> A. Yes<br> B. No
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!