Question

In this​ year, the average cost of a traditional Thanksgiving dinner for​ 10, featuring​ turkey, stuffing,​ cranberries, pumpkin​ pie, and​ trimmings, was ​$48.05​, a decrease of 1.76​% from the cost in the last year. What was the average cost of a traditional Thanksgiving dinner in the last​ year?

Answer 1

Last year, the average cost of a traditional Thanksgiving dinner was $48.91.

Explanation:

If this year the cost of a traditional Thanksgiving dinner was decreased by 1.76% compared to last year, then

last year cosr - 100%

this year cost - 100%-1.76%=98.24%

So,

$x - 100%

$48.05 - 98.24%

Write a proportion:

`(x)/(48.05)=(100)/(98.24)`

Cross multiply:

`98.24x=48.05\cdot 100\\ \\98.24x=4,805\\ \\x\approx 48.91`

Last year, the average cost of a traditional Thanksgiving dinner was $48.91.