The answer is 49.5 for the variable c
Using a system of equations, it is found that:
- There are 8 chickens in the yard.
- There are 16 pigs in the yard.
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This question is solved using a system of equations. I am going to say that:
- x is the number of chickens.
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- A chicken has 1 head, as do a pig.
- There are 24 heads.
Thus:

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- A chicken has 2 feet.
- A pig has 4 feet.
- In total, there are 80 feet.
Thus:

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Number of chicken:
Since 






There are 8 chickens in the yard.
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Number of pigs:

There are 16 pigs in the yard.
A similar problem is given at brainly.com/question/24104709
For any direct variation, the equation is of the form y = kx, where k is the constant of proportionality.
Given the equation: f = 2.5w
The constant of proportionality is 2.5.
This means that the ration of the cups of flour to the cups of water used in the recipe is 2.5
There’s 4 oxygen as O2 is multiplied by 2 as there are 2 groups of c2h3o2 present.
Let's take the camera's regular price as a
Regular price for 70 dollar thing = 100
<span>Regular price for 1099 dollar thing = (100/70) * 1099</span>
= $1570
So the regular price of camera is $1570