Question

You bought a 5 pound turkey for 14.45. How much would a 7 pound turkey cost?

Answer 1

$20.23

Explanation:

if you take 14.45 and divide it by 5 you get $2.89

which makes it 2.89 a pound. so 2.89 multiplied by 7 gets you $20.23

Answer 2

Given:

Turkey bought = 5 pound

Cost of 5 pound of turkey = 14.45

To find:

Cost of 7 pound of turkey

Solution:

Using unitary method, if the cost of 5 pound of turkey is 14.45 then the cost of one pound of turkey would be
`(14.45)/(5)=2.89`

Therefore, the cost of one pound of turkey is 2.89.

So, cost of 7 pound of turkey =
`2.89*7=20.23`

Thus, 7 pounds of turkey costs 20.23 units.

Unitary method:

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value. In essence, this method is used to find the value of a unit from the value of a multiple, and hence the value of a multiple.