A dog kennel charges $20 per night to board your dog. You can also have a doggie treat delivered to your dog for $5. Write an equation the models the possible combinations of nights at the kennel and doggie treats that you can buy for $100.

Question

agreene · Answer

100 = 20x + 5x
100 = 25x
4=x                        so if you buy a treat every night, you can buy 4 nights worth

100 = 20x             Assuming you buy no treats...
x= 5

anonymous · Answer

ISNT IT 20X+ 5Y srry caps

anonymous · Answer

that what i was thinking but i also thought of the 20x+5x. i am just not 100 percent sure on this one

agreene · Answer

I dont see why you would need two variables, since the only thing it's asking is how many nights you could do it for $100. I mean, you can right it that way if you choose, but it just makes things more complex than needed.

anonymous · Answer

But what would you say when it says explain

anonymous · Answer

they probably want the maximum value

agreene · Answer

I suppose 100 = 20x + 5y   will let you model the combinations better. so go with that maybe? I mean the other question you asked is formed that way too. So, I assume that's what you're learning right now.

agreene · Answer

but, it does imply that at some point you could choose to purchase the treat and not have your dog there. which makes no sense... but I guess you could just call that a trivial answer.

anonymous · Answer

What would the independant variable be
dependant?