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
sergij07 [2.7K]
3 years ago
15

George wants to buy pets for each of his 5 grandchildren if he buys 3 pooples and 2 cats he will spend 1200 if he buys 2 poodles

and 3 cats he will spend 1050. find the cost of a poodle and cat
Mathematics
1 answer:
Gre4nikov [31]3 years ago
8 0

Answer:

Each poodle = $300

Each Cat = $150

Step-by-step explanation:

Let number of poodles be P and number of cats be C

"if he buys 3 pooples and 2 cats he will spend 1200" mathematically:

3P + 2C = 1200-------eq 1

"2 poodles and 3 cats he will spend 1050" mathematically:

2P + 3C = 1050 ------eq 2

So now we have a system of 2 equations with 2 unknowns, we'll solve by elimination

eq 1 x 3 : 3 (3P + 2C) = 3  (1200)

9P + 6C = 3600 ------ eq 3

eq 2 x 2: 2(2P + 3C) = 2(1050)

4P + 6C = 2100---------eq 4

By elimination : eq 3 - eq 4

(9P + 6C) - (4P + 6C) = 3600 - 2100

9P - 4P = 1500

5P = 1500

P = 300  (answer)

Substituting back into eq 1

3(300) + 2C = 1200

900 + 2C = 1200

2C = 1200 - 900

2C = 300

C = 150(answer)

You might be interested in
Atevery bus station, busses depart at a rate of 3 every 10 minutes. At this rate, how many buses would you expect to depart in o
Ber [7]
Rate of 3 every 10 minutes.

In 10 minutes there are 3 buses.

In  1 minute    it is        (3/10).     For 1 hour = 60 minutes.

For 60 minutes  =  3/10  * 60  =  18.

18 buses.
7 0
3 years ago
Solve the system of equations.<br><br> 14x + y = −4<br><br> y = 3x^2 − 11x − 4
sveta [45]
You can use substitution here. First, get y alone:

14x + y = -4
subtract 14x from each side
y = -4 - 14x

Then, plug y into the second equation

-4 - 14x = 3x² - 11x - 4
 then solve from there

Hope this helps :)
4 0
4 years ago
Solve for x.<br><br> −14x+5=34<br><br> Enter your answer in the box
adelina 88 [10]
-14x + 5 = 34
-14x = 29
x = -2.10
7 0
3 years ago
Read 2 more answers
Multiply. x^2 + 8x + 15/x-4 x x^2-16/2x+6
Sophie [7]
= 1/2 ( x + 5 ) ( x + 4 )
5 0
3 years ago
Read 2 more answers
If x=3 ,then 5x - 9=6 conclusion:x=3 <br> true or false
saul85 [17]
(5 x3)-9=6 its true
5 0
3 years ago
Read 2 more answers
Other questions:
  • A grocery store is offering a promotion where a customer receives a $0.20 discount per item on selected sale items, and Paulo ha
    8·1 answer
  • What’s the answer ??
    11·1 answer
  • A, B &amp; C form a triangle where BAC = 90° . AB = 7.3 mm and CA = 7.4 mm. Find the length of BC giving your answer rounded to
    13·1 answer
  • What is 14 3/5 in decimal form
    10·2 answers
  • Can u please work out the answers for me thank you x
    7·2 answers
  • WILL GIVE BRAINLIEST! HELP!
    10·1 answer
  • How many edges does a polyhedron with 28 faces and 40 vertices have calculator?
    8·2 answers
  • If an investment account starts with $3,900, and grows with 2.1% interest, compounded annually, how much is the account worth af
    7·1 answer
  • An object with a mass of 3.2 kg has a force of 7.3 newtons applied to it. What is the resulting acceleration of the object?
    5·1 answer
  • I have a test tmrw pls help
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!