Price before tip "b" of Kia’s dinner is $ 35
Solution:
Given that kia dinner bill is $ 40.25 which inclused a 15% tip
To find: price before tip "b" of Kia’s dinner
Let us first find the tip amount paid by Kia
Let "b" be the dinner bill before tip
Given that dinner bill is $ 40.25 which inclused a 15% tip
So, 15 % of "b" is the tip amount paid
tip amount paid = 15 % of "b"
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Now we can say,
Dinner bill including tip = dinner bill before tip + tip paid
$ 40.25 = b + 0.15b
40.25 = 1.15b
b = 35
Thus price before tip "b" of Kia’s dinner is $ 35