<u>Answer:</u>
W = 30T + 500
<u>Step-by-step explanation:</u>
We are given that water is added in the pond at a rate of 30 liters per minute and there are total 500 liters in the pond to start.
So assuming W to be the amount of water in the pond (in liters) and T to be the the number of minutes that water has been added, we can write an equation:
W = 30T + 500
(W on the y-axis and T on the x axis)
Answer:
There are 16 cows and 24 chickens in the farm.
Step-by-step explanation:
A Cow has 4 legs
Chicken has 2 legs.
Lets take there chickens AND,
there are number of Cows.
Now we can write two equations for the number of heads and legs.
For the number of heads we can write,
<--------- 1st equation
For the number of legs we can write,
<------ 2nd equation
We can now solve the simultaneous equations to find and
Multiply 1st equation by 2 and deduct it from 2nd equation to remove
⇒
⇒
⇒
⇒
Therefore, there are 16 cows in the farm.
Now we can substitute the value to the 1st equation and find
value.
Therefore, there are 24 chickens in the farm.