## anonymous 5 years ago i am stuck on this problem and none of the multiple choice answers fit the uk, denmark, and norway have a total of 20 territories. norway has 1/5 as many as the uk. denmark has 2 territories. how many territories does norway have.

1. anonymous

hey, how's it going

2. anonymous

good thanks

3. anonymous

uk denmark and norway have 20 territories, denmark has 2 territories so uk+norway = 18

4. anonymous

now you need to set up a system of equations to solve

5. anonymous

the first one is u+n=18

6. anonymous

i got that then i divided it by .2 but it didn't fit

7. anonymous

try to turn the sentence-form information they give you into a math equation

8. anonymous

divided what by .2? did you understand the idea of a system of equations?

9. anonymous

the 18 because it said that had 1/5 as many territories...sorry meant multiplied 18 by .2

10. anonymous

basically if you have two variables, you need two equations to work with to solve for the variables

11. anonymous

1/5 as many territories as the UK

12. anonymous

not 1/5 as many territories as 18

13. anonymous

opps

14. anonymous

norway has 1/5 as many as the uk.

15. anonymous

norway = 1/5 * uk

16. anonymous

n = 1/5 * u

17. anonymous

sorry we just start algebra and the teacher didn't explain this and i couldnt find an example in the book

18. anonymous

don't be sorry, it's no problem

19. anonymous

now that you have n+u=18 and n=1/5 * u, you want to substitute n back into the first equation so you have only 1 variable to work with

20. anonymous

i'm so confused :(

21. anonymous

would it be 1/5 * u+u=18 or 2u=18-1/5 or something like that

22. anonymous

are you still able to help me

23. anonymous

thanks for your help i will ask the teacher thank you i have to go to bed