# algebra

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.

1. 👍 0
2. 👎 0
3. 👁 85
1. 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

1. 👍 0
2. 👎 0
posted by Reiny
2. 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

1. 👍 0
2. 👎 0
posted by Carole

## Similar Questions

1. ### maths

Scenario: There is a bus with 7 girls inside, Each girl has 7 bags, Inside each bag, there are 7 Big cats, Each Big cat has 7 small cats, All cats have 4 Legs each! 7 big cats times 7 small cats = 49 small cats 49 small cats plus

asked by mehek on August 16, 2007
2. ### Math

A pet hotel has an equal number of dogs and cats spending the night. If 8 cats are picked up, twice as many dogs as cats remain. What was the original number of pets present for the evening? Im having a hard time understanding

asked by Anonymous on September 21, 2019
3. ### Math

The ratio of the number of cats to the number of dogs in an animal shelter was 2:3. After 120 cats were adopted, the ratio of the number of cats to the number of dogs became 3:7. Find the total number of cats and dogs in the

asked by Dalisay on November 22, 2016
4. ### math

i am having a minor difficulty i've been stuck for over an hour and don't know what to do i don't know is this right ? = "+" or "-" # = number y=x (x+1)squared + (y+1)squared = 6 i substitute y (x+1)squared + (x+1)squared = 6 x

asked by larry on February 23, 2010
5. ### Inter. Algebra

Another problem plz help Count Iblis. How do you solve 5/x+2 + 2x/x squared - 4= 3/x-2? 5/x+2 + 2x/x squared - 4= 3/x-2 You write the term: 2x/x squared as 2/x the equation becomes: 5/x+2 + 2/x - 4= 3/x-2 4/x = 0 This equation has

asked by Andrea on December 2, 2006
6. ### Essay Writing

I need help with making my outline parallel. II. Body A. Needs 1. Feeding a. Cats b. Dogs 2. Training a. Cats b. Dogs 3. Grooming a. Cats b. Dogs 4. Medicating a. Cats b. Dogs B. Personalities 1. Cats a. Playing b. Vocalizing c.

asked by Anna on November 24, 2008
7. ### Mathematics question

In my town some of the animals are really strange. Ten percent of the dogs think that they are cats and ten percent of the cats think they are dogs. All the other cats and dogs are perfectly normal. One day I tested all the cats

asked by jacob on July 7, 2017
8. ### Math

Please help me answer this question At the Cats galore cat show, 1/2 cat were Siamese, 1/6 were Persian, 1/5 were Abyssinian and 4 cats were tabby. how many cats were at the show? write an equation and solve it Thank you BJ

asked by BJ on October 26, 2015
9. ### hsm210

Scenario 3: Caring for the HomelessYou are a case manager in a community mental health center. Many of your clients are homeless and have either mental disorders or substance abuse and health problems. Health problems among the

asked by ann faniel on July 5, 2011