Hi. In order to solve this word problem, you must make two equations and solve them together. To make it easy, we will let the letter "p" represent the pigs and the letter "c" for the chickens. So our first equation will be:
p + c = 13
Now to count the legs - we know that pigs have 4 legs and chickens have 2 so our next equation will be:
2c + 4p = 40
Using the first equation we see that c = 13 - p Now we insert this into the second equation and solve:
2x(13-p) +4 pm = 40
26 - 2p + 4p = 40
2p = 14
p = 7 (there are 7 pigs so now we know there are 6 chickens.
Answer: 7 pigs and 6 chickens
I hope this helps.
Take care,
Diana
Answer:

Step-by-step explanation:
On Friday, there were x students at the baseball game.
On Monday, there were 1/2 as many students, that is: x/2 students
On Wednesday, there were 32 fewer students at the game as there were on Friday, that is x - 32.
Tickets are sold for each student. Therefore, the number of tickets sold on all three days will be the same as the number of students that were at the games on the three days.
The number of students present on the three days is:
x + x/2 + x - 32

The number of tickets sold can therefore be represented by 
Answer:
7^2
Step-by-step explanation:
there is one law of exponent, where if you're dividing 2, and the base is the same, you can just subtract the exponents so-
Answer:
320
Step-by-step explanation:
4*80=320