Lisa purchased a hat for $10, a purse for $20, and a book for $23. The sales tax rate was 7.2 percent. What was the total amount
2 answers:
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A=10, B=11, C=12, etc.
Now, the "only" thing that remains to do is solving the above equation.
While making this problem I only made sure it has a solution. I didn't try to solve it myself and I didn't know it will end up with such "convoluted" polynomial. Sorry to everyone who tried to solve it... m(_ _)m
I think the best way to approach it is using the rational root theorem since we know that . Moreover we can deduce that
since there is
and
.
After you succesfully solve it, you should get the answer .
we are given
Since, we have to solve for w
so, we will isolate w on anyone side
Multiply both sides by 5
so,
option-D..........Answer