Homework Help: math

Posted by Kenny on Friday, January 22, 2010 at 8:02am.

What is original value if the total is 40 and the sale tax is 8.75%?

y * 8.75 = 40 is this the setup to solve the problem?

math - bobpursley, Friday, January 22, 2010 at 8:45am
y(1+.0875)=40
solve for y, the original value.
math - Kenny, Friday, January 22, 2010 at 9:35am
Thank you for helping bobpursley
I forget to put 1 for (1 + .0875).
Here is what I solve this:
y(1+.0875)=40
1.0875y=40
y=40/1.0875
y=$36.78
Thanks

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