# math

posted by .

can someone write out the equations so i can solve it. Please...

#1

A biologist recorded 9 snakes on 21 acres in one area and 13 snakes on 47 acres in another area. Let y be the number of snakes in x acres. Write this one in a linear equation for the number of snakes.

The straight line that goes through both points (21,9) and (47,13) would have slope m = (4/26) = 2/13

The equation of the line would be
(y - 9) = (2/13) (x - 21)

y = (2/13)x + 9 - 42/13
= (2/13)x + 75/13

A more likely formula would be one without a constant (since the numnber of snakes shold be zero when tha area is zero) That is a "best-fit" straight line. There are other ways to calculate that.

thats right i completely forgot to set them up as points and solve from there duhhh to me . Thank you so much for bringing it out.

• math -

13y+2x+75

## Similar Questions

1. ### Math

Two farmers use combines to harvest corn from their fields. One farmer has 600 acres of corn, and the other has 1000 acres of corn. Each former's combine can harvest 100 acres per day. Write two equations for the number of acres y …
2. ### Math

Landon is working one plans for a 12-acre housing development. A park will cover 2 1/2 acres, and paved areas will take 1 3/4 acres. How many acres are left for home sites?
3. ### math

A fire covers 420 acres and continues to spread at a rate of 60 acres per day. a.How many total acres will be covered in the next 2 days?
4. ### math

Can I gt some help on these questions! 1.Research subjects that are divided up based on gender, age, etc. to be compared to people of the same group is what type of design experiment?
5. ### Algebra 2

Please can someone help me with these last few questions on my homework?
6. ### Math

A gardener grows roses, tulips, and sunflowers in an 18-acre public garden. This year, she wants to plant twice as many acres of sunflowers as acres of tulips. She also wants wants to plant 6 more acres of roses than of sunflowers. …
7. ### algebra

The equation a = 640s gives the relationship between s square miles and a acres. Pam owns 7.5 square miles of farmland. How many acres does she own?
8. ### Algebra

I lined up all of my pet snakes. The two pythons are 6 feet each. I also have three corn snakes that are all the same length. Altogether, my snakes total 21 feet. A. How long is one of the corn snakes?
9. ### math

joe cut three acres of grass at the smith farm which is 15% of the property. how many acres are on the smith farm?
10. ### math

A farmer planted 3 2/3 acres of oats, 5 3/4 acres of wheat, and 2 5/6 acres of barley. Compute the total number of acres planted?

More Similar Questions