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
notsponge [240]
3 years ago
15

Last month, he sold 50 chickens and 30 ducks for $550. This month, he sold 44 chickens and 36 ducks for $532

Mathematics
2 answers:
IgorC [24]3 years ago
5 0
The answer is chicken $8, duck $5

x - the cost of a chicken
y - the cost of a duck

<span>he sold 50 chickens and 30 ducks for $550: 50x + 30y = 550
</span><span>he sold 44 chickens and 36 ducks for $532: 44x + 36y = 532

</span>50x + 30y = 550                divide by 10
44x + 36y = 550                 divide by 4
______________
50x/10 + 30y/10 = 550/10
44x/4 + 36y/4 = 532/4
______________
5x + 3y = 55                                    Multiply by (-3)
11x + 9y = 133
______________
5x * (-3) + 3y * (-3) = 55 * (-3)
11x + 9y = 133
______________
-15x - 9y = -165
11x + 9y = 133
______________
Sum up:
-4x + 0y = -32
-4x = -32
x = -32/-4
x = 8


Since 5x + 3y = 55  and x = 8, then:
5 * 8 + 3y = 55
40 + 3y = 55
3y = 55 - 40
3y = 15
y = 15/3
y = 5
11Alexandr11 [23.1K]3 years ago
3 0

Answer:

chicken 8 and duck 5

Step-by-step explanation:

You might be interested in
2 (h-8)-h = h-16 what is the solution
Svetach [21]
Let's solve your equation step-by-step.<span><span><span>2<span>(<span>h−8</span>)</span></span>−h</span>=<span>h−16</span></span>Step 1: Simplify both sides of the equation.<span><span><span>2<span>(<span>h−8</span>)</span></span>−h</span>=<span>h−16</span></span><span>Simplify: (Show steps)</span><span><span>h−16</span>=<span>h−16</span></span>Step 2: Subtract h from both sides.<span><span><span>h−16</span>−h</span>=<span><span>h−16</span>−h</span></span><span><span>−16</span>=<span>−<span>16
</span></span></span>Step 3: Add 16 to both sides.<span><span><span>−16</span>+16</span>=<span><span>−16</span>+16</span></span><span>0=0</span>Answer:<span>All real numbers are solutions.</span>
6 0
3 years ago
Find the length BC
Nady [450]
Answer:

The length of BC = 12

Step-by-step explanation:

c^2 = a^2 + b^2

15^2 = 9^2 + b^2

225 = 81 + b^2

b^2 = 225 - 81

b^2 = 144

b = 12

The length of BC is 12
5 0
2 years ago
Write the following using index notation<br><br>2 x 9 x 9 x 9 x 2 x 9​
taurus [48]
9^4 not totally sure tho
4 0
2 years ago
A. 4.5 square 3<br> b.9<br> c. 9 square 2 <br> b 9 square 3
LiRa [457]
Sus among us sussy sushi suss
4 0
2 years ago
The Turtle and Achilles compete. They start at the same time from the same place. Achilles runs at a speed of 13 mph while the T
spayn [35]

Answer:

The competition took 12.5 minutes.

Step-by-step explanation:

Let the time taken by Achilles to complete the competition is h hours.

Now, Achilles runs at a speed of 13 mph while the Turtle moves at a speed of 1 mph.

So, the competition was 13h miles long.

Now, Turtle will take h hours to complete h miles of the competition.

Now, given that (13h - h) = 2.5

⇒ 12h = 2.5

⇒ h = 0.208 hours.

⇒ h = 12.5 minutes.

Therefore, the competition took 12.5 minutes. (Answer)

3 0
3 years ago
Other questions:
  • What is the complete factorization of 108x^2-99y+3
    9·1 answer
  • Is 20/30 greater than or less than 25/60?
    11·2 answers
  • Lacey already owns 7 hair bands, and additional hair bands are priced at 1 for a dollar. How
    7·1 answer
  • Solve for x. 16- x=275
    12·2 answers
  • Pls explain the easiest way you an this will help me Thanks XD
    8·1 answer
  • Three of these expressions give the distance between points A and B on the number line which expression does NOT
    6·1 answer
  • BRAINLIEST! hello please help i’ll give brainliest
    14·2 answers
  • The dimensions of a
    8·1 answer
  • What methods do you know that can be used to solve a quadratic equation?
    9·2 answers
  • Find the cost per roll if a bag of five lunch rolls is $2.50.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!