Question

At a certain restaurant, milkshakes cost $4 and cheeseburgers cost $6. If Al buys 1 milkshake and x cheeseburgers and spends at least $30 but no more than $46,

what is one value of x

Answer 1

5, 6 or 7

Explanation:

If Al spends $30, the number of cheeseburgers bought is:

`x=(30-4)/(6)\\x=4.3333`

Since $30 is the minimum value, he has to buy at least 5 cheeseburgers.

If Al spends $46, the number of cheeseburgers bought is:

`x=(46-4)/(6)\\x=7`

Therefore, Al bought between 5 and 7 cheeseburgers, which means that 5, 6 or 7 are possible values of x.