Posted by **gaby** on Wednesday, January 6, 2010 at 8:44pm.

if a gift is 42.40 including tax,what is the retail price for the gift if the sales tax is 6% ??

- math -
**Marth**, Wednesday, January 6, 2010 at 8:47pm
Set up a ratio. The cost of the gift including tax is 106% of the cost without tax.

42.40/106 = x/100

Solve for x.

(Note it does not matter whether you use 1.06 or 106 for the percentages in the ratio as long as you are consistent).

- math -
**Ms. Sue**, Wednesday, January 6, 2010 at 8:47pm
1.06x = 42.4

x = 42.4 / 1.06

x = ?

- math -
**drwls**, Wednesday, January 6, 2010 at 8:48pm
42.40 = X * 1.06

where X is the retail price

X = 42.40/1.06 = $40.00

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