## pinkstick 3 years ago word problem: Kristin spent \$131 on shirts.Fancy shirts cost \$28 and plain shirts cost \$15.If she bought a total of 7 then how many of each kind did she buy?

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1. asnaseer

Start off by defining some variables. So lets set f = number of fancy shirts bought and lets set p = number of plain shirts bought Can you formulate some equations using these symbols?

2. pinkstick

wait im confused how do u do this problem

3. asnaseer

e.g. you are told that the total umber of shirts bought is 7. So if you bought 'f' fancy ones, and 'p' plain ones, then we can say that:\[f+p=7\]

4. pinkstick

ok

5. asnaseer

now, since there are two unknowns here (f and p), we need two equations in order to solve this.

6. pinkstick

then how do we solve the problem because it says she spent \$131

7. asnaseer

So, make use of the other piece of information given to you to formulate the second equation

8. asnaseer

If Fancy shirts cost \$28 and you bought 'f' fancy shirts, then what will be the total cost of fancy shirts?

9. pinkstick

\$28

10. asnaseer

\$28 is cost of ONE fancy shirt

11. asnaseer

so, if you bought 'f' of them, how much would they cost?

12. pinkstick

r u the tutor

13. asnaseer

:) anyone on this site can both teach and/or learn. we do not have specific 'tutors' as such.

14. asnaseer

the site is based on mutual learning

15. asnaseer

I am actual in fulltime employment as a software engineer. I teach maths as a hobby because I enjoy it. :)

16. Chlorophyll

@pinkstick Can you focus on asnaseer's instruction?

17. asnaseer

It's ok @Chlorophyll, @pinkstick is a new user, so I assume he/she is curious to know how this site works. :)

which shirts did she bought? 7 Fancy shirts or both?