Question

( I will give a medal)
Jennifer and six friends go to dinner at a hamburger place. A cheeseburger is $5, and a hamburger is $3. They buy 7 burgers in all, and their bill is $32. Select the equation that best represents this system. Let x represent cheeseburgers, and y represent hamburgers.
A.x + y = 7
5x + 3y = 32
Bx + y = 7
x + 5y = 32
C.x + y = 32
5x + 3y = 7
D.5x + y = 32
x + 3y = 7

Answer 1

Well we want the first equation to tell us the number of hamburgers and the second to tell us what each cost and the total cost. Does this help?

Answer 2

Or, I guess I should say that the first one should tell us the number of hamburgers and cheezeburgers

Answer 3

o.o..

Answer 4

I'm trying to figure out how to explain this without just giving you the answer. >.>
Have you done coin problems? Like "23 coins are composed of quarters and dimes, the total cost is $2.25, how many of each coin are there?"

Answer 5

no

Answer 6

5x+3y=32
You dont need to worry about the 7 because that is included in your variables. You bought the burgers, two different kinds, but they have the same price.

Answer 7

keridavis do you have a bf

Answer 8

So, x and y are the number of burgers of a certain kind you're going to get. It says you're going to get 7 burgers, which means x + y has to equal 7. A cheeseburger is 5 dollars, and x is cheeseburgers. A hamburger is 3 dollars, and y is the hamburger. So, 5x + 3y has to equal 32 dollars because that's how much it says that you spent. Does this make sense?

Answer 9

(So, the answer is the one that has both of the equations I mentioned) You need two equations to solve this problem, and I gave you both of them.

Answer 10

Thank you

Answer 11

You're welcome(:

Answer 12

I'm glad I could help(: