Question

The cost of turkey is directly proportional to its weight. If a 12-pount turkey costs $27, how much does a 13-pound turkey cost?

Answer 1

$29.25

Explanation:

Divide the cost of the turkey by 12 to obtain the unit cost then multiply this by 13

cost =
`(27)/(12)` × 13 = $29.25

Answer 2

$29.25

Explanation:

In order to calcualt ethe cost of a 13 pound turkey knowing that the cost of turkey is proportional and we know that a 12 pound turkey costs $27, we can just make a rule of three to calculate the 13 pound turkey, like this:

`(12)/(27)=(13)/(x)`

Now we clear the x on the function to be able to calculate the cost:

`x=((27)(13))/(12)`

`x=29.25`

With this we know that the cost of a 13 pound turkey would be $29.25