Dear VP helper,

I've confused about this question:

"7.Mario saved more than $30 when buying his TV at a 15% discount.what is the least expensive price that the TV could have cost before the discount?"

the given key of the book is followed:

"Mario's savings,15% off of the retail price,are more than $30.We can write this mathematically as:
15% of retail> 30
15/100 R >30
...
R>200"


I thought the answer is
15% off of the retail >30
85% of retail >30
85% R >30
R>600/17
R>35


Am I miss something? What do you think of this question?

Thanks,have a nice day!

Cathy

The way you're solving it would be right if they phrased it "Mario SPENT more than $30 on his TV with a 15% discount."
Since we're calculating the amount of the discount, rather than the final cost of the TV, we don't look at the 85% number.

Make sense?

Veritas Help

Get it. To the point, and very impressive! Thanks!