Car tank

Hello everyone, cant seem to get this right. Bob just filled his car's tank with 20 gallons of gasohol, a mixture containing of 5% ethanol and 95% gasoline. If his car runs best on a mixture containing of 10% ethanol and 90% gasoline, how many gallons of ethanol must he add into the gas tank for his...

Dessert and coffee

I cant get the right answer to this problem. Any one please help: The waiter at a restaurant has noticed that 60% of the couples order dessert and coffee. However, 20% of the couples who order dessert don't order coffee. What is the probability that the next couples the waiter seats will not order d...

Hello Patrick!

Thanks for the soln. However, I am little confused...the first line (-1<x<1) in your answer, is that a rephrasing of the original question ? The original states |n|<1 so I thought it should be -1<n<1???

Thanks!

Is |n|<1?

Is |n|<1?
a) n^x-n<0
b) x^-1=-2

Thanks!

Its only First class (transcripts do not mention distinction). But I scored 6th (All India Level). I have been a gold medalist in school (Class XII - topped my school and received highest marks in economics & english). Received 20000 scholarship from Andhra State Govt. But I agree with you, its ...

Thanks Michael!

Profile Evaluation Request

Hi, Can any of the experts help me with my profile evaluation: 28 F India Undergraduate in hospitality (no GPA's but among the top ten in college - have certificates to prove that. In % terms, about 78% - (I dont know how that maps to GPA, though). 22 month experience working with hotels, later chan...