during the sale the pet store had a special price for a different brand of cat food one can of that brand cost $1.70 or a package of 3 cans cost $4.90 how many cans can be purchased for $37.70?

Question

anonymous · Answer

help plz i'm really bad at math

jdoe0001 · Answer

well... you go to the pet store that day
with $37.70

now, if you buy a set of 3, you get them for 4.90, NOT 1.70 * 3
so you get a deal for every 3-packs you get

you have only 37.70
how many 3-packs can you get for that?

anonymous · Answer

5?

anonymous · Answer

@jdoe0001

retireed · Answer

We need an equation...

retireed · Answer

a three can pack  P cost $4.90
a single can S cost  $1.70

I can only come up the one equation for the two unknowns...

      4.9 P + 1.7 S = 37.7

Wait a second here is another equation

        3P + S = X             X is the total number of cans

Now I have two equations with three unknowns.  Still not good....

How are we going to solve this?

retireed · Answer

so you are offline now,  when or if you come back let me know and I will show you how to solve the problem