Posted by **linda** on Sunday, December 5, 2010 at 8:03pm.

the number of cats that are homeless can be modeled by the equation N= 2.1t squared - 82t + 95 where N is the number of cats that are homeless and t=0 set as the current year.Use the quadratic model to find the number of years from now until the number of homeless cats is equal to 15.need larger number of the two answers to the nearest hundredth.

- algebra -
**Reiny**, Sunday, December 5, 2010 at 8:44pm
2.1t^2 - 82t + 95 = 15

2.1t^2 - 82t + 80 = 0

solve using the quadratic equation formula, I got

t = 1.00 or t =38.05

- algebra -
**Carole**, Sunday, December 5, 2010 at 8:54pm
N=2.1t^2- 82t+95 Since N = 15,

15=2.1t^2- 82t+95 Now get this quadratic into standard form by subtracting 15 from both sides

15-15= 2.1t^2- 82t+95-15

0=2.1t^2- 82t+80 I am not sure what methods you have studied to solve this yet, but I would use the quadratic equation. Where a = 2.1, b = 82 and c = 80

t= (-b}ã(b^2-4ac))/2a

t= (-82}6052)/(2(2.1))

t = -1.00 or -38.04

Largest would be -1.00

## Answer This Question

## Related Questions

- maths - Scenario: There is a bus with 7 girls inside, Each girl has 7 bags, ...
- 4th Grade Math - The ratio of the number of dogs to the number of cats at an ...
- Essay Writing - I need help with making my outline parallel. II. Body A. Needs 1...
- Math - Two cats are taking a walk. 1 cat runs off. three cats come back. 1 cat ...
- WITC math - There is a bus with 7 girls inside, Each girl has 7 bags, Inside ...
- Algebra - In a pet store there are 4 more cats than dogs and the ratio of cats ...
- Algebra - In a pet store there are 4 more cats than dogs and the ratio of cats ...
- math - The ratio of the number of cats to the number of birds at the shp is 2 : ...
- math - a is the set of siamese cats b is the set of cats how do I determine ...
- Math - Please help me answer this question At the Cats galore cat show, 1/2 cat ...

More Related Questions