In a certain desert environment there are a lot of small rodents. There also happens to be many snakes that feed on the rodents. The ratio of rodents to rodent-eating snakes is 13 to 5. If there are 4000 snakes in the area, how many rodents are there?

5k=serpientes

13k=roedores

5k=4000

k=800

13x800=10400

I got 923 rodents.

This is how I solved it:

So, since we're talking ratios, I took snakes eaten divided by # of rodents.

Snakes eaten/# of rodents

13/4,000 = 3/x

Now, you would cross multiply. (This is how I was taught).

13 * x = 13x and 4,000 * 3 = 12,000

Now, your equation should look like this:

13x = 12,000

Now, you would divide 13 and it would look like this:

13x/13 = 12,000/13

You wouldn't divide 13x by 13. It just stays x.

It would be x = your answer

So, 12,000/13 is 923.0769231 but you only round up if the first number after the decimal is 5 or higher. In this case, it just stays 923.

Your final answer would be 923 rodents.

I hope this helps you somewhat.

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

chase is right because he already been to the swings and he know how far it will be to get there

step-by-step explanation: