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
Maru [420]
3 years ago
12

1) A farm has chickens and cows. You ask the farmer how many chickens he has, and how many cows he has. The farmer tells you he

has 28 healthy animals, and they have a total of 64 legs. How many of his animals are cows?
2) Andrew has a collection of soda bottles. Some of them are 12-ounce bottles, and others are 16-ounce bottles. If the collection contains 20 bottles which hold a combined 300 ounces, how many of the soda bottles are 12-ounce bottles?

Need two variables and two equations for each. It also needs to be solved.
Mathematics
1 answer:
Luden [163]3 years ago
5 0
1. c=cows b=chicens c+b=28 chicen has 2 legs cow has 4 legs 4c+2b=64 c+b=28 4c+2b=64 multiply first equaiton by -2 and add to second -2c-2b=-56 4c+2b=64 + 2c+0b=8 2c=8 divide 2 c=4 sub c+b=28 4+b=28 minus 4 b=24 4 cows and 24 chicens 2. t=twelve oz s=sixteen oz t+s=20 12t+16s=300 find t multiply first equation by -16 -16t-16s=-320 add to first equation -16t-16s=-320 12t+16s=300 + -4t+0s=-20 -4t=-20 divide -4 t=5 five 12 oz bottles 1. 4 cows, 24 chicen 2. 5 twelve oz bottles
You might be interested in
What is the product of a number and 3?
RideAnS [48]

The product is the result of multiplying, and whatever number is multiplied by 3 is the amount of times you add 3 to the answer.

Example:

3x7= 3+3+3+3+3+3+3=21

8 0
3 years ago
Read 2 more answers
How you divided numbers
german

Answer:

Step-by-step explanation:

It really depend what number, or what type of number you are multiplying, it's kind of like multiplication you're just doing it backwards. Say that you were trying to divide 20 by 5 you think in your head OK five times what equals 20 and your answer would be four because 5×4 is 20 that's the easiest way to think of it that did not help you with your question tell me in the comments and I will find a better way to explain it.

7 0
3 years ago
Vertx: (3, 1)<br> Focus: (3,-1)
enot [183]

Answer:

i need help with this one two

Step-by-step explanation:

.

5 0
3 years ago
Subject: Finding Range Using a Graph
grigory [225]

Answer:

4.7

Step-by-step explanation:

The red I think is hinting to the x.

5 0
3 years ago
What is the correct answer?
vovikov84 [41]

Answer:

84 units2

Step-by-step explanation:

First, you multiply 24 *7 = 168

Second, you divide 168 / 2 = 84

Lastly, have a great day!

5 0
2 years ago
Other questions:
  • Find the limit (enter 'DNE' if the limit does not exist)
    15·1 answer
  • What is the maturity value of $1 at a compound interest rate of 9 percent over 4 periods
    11·1 answer
  • Do the following scenarios model the equation y=2x+5
    5·2 answers
  • Sweaters cost $39 each. This is $15 more than the price of a cap. Over the season, 725 caps were sold. What was the total sales
    8·1 answer
  • Mario and luigi pain to buy a wii for 299.00. wii games cost 59.99 each
    10·1 answer
  • If a man is driving at a rate of 80 km per hour, how many kilometers will he travel in 30 minutes? A. 30 km B. 40 km C. 60 km D.
    6·2 answers
  • 5/6 - = 1/2 whats the answer
    12·2 answers
  • Which planet in the chart is most likely Earth? Yeah <br> Does somone no the answer
    13·1 answer
  • Boris started to run on a treadmill after setting its timer for 92 minutes. The display says that he has finished 73% of his run
    13·1 answer
  • Hannah makes $46,675 per year, how much will she make each paycheck if she is paid<br> weekly?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!