By Jeff
- **Sep 10**, 02:00 AM

Math
It takes Otto 6 days to finish a research project. If Otto and Hannah working together can finish the same project in 4 days, how many days will it take Hanna to finish the project by herself?
A. 6
B. 8
C. 10
D. 12
E. 14
Question Discussion & Explanation
Correct...

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By Jeff
- **Sep 9**, 02:00 AM

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By Jeff
- **Sep 8**, 02:00 AM

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By Jeff
- **Sep 7**, 02:00 AM

Math
To build a rectangular chicken pen, Mike has 40 meters of netting. If Mike wants to maximize the area of the pen, what will be the most favorable dimensions?
A. 12 x 8
B. 15 x 8
C. 10 x 10
D. 15 x 15
E. 15 x 5
Question Discussion...

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By Jeff
- **Sep 4**, 02:00 AM

Math
Kate and David each have $10. Together they flip a coin 5 times. Every time the coin lands on heads, Kate gives David $1. Every time the coin lands on tails, David gives Kate $1. After the coin is flipped 5 times, what is the...

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By Jeff
- **Sep 3**, 02:00 AM

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By Jeff
- **Sep 2**, 02:00 AM

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By Jeff
- **Sep 1**, 02:00 AM

Math
Two cities, Kensington, MD and Reston, VA are 30 km apart. From both of these cities, simultaneously, two hikers start their journeys towards each other. They are walking at a constant speed of 5 km/hour each. Simultaneously, a fly leaves the city of Kensington. It...

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By Jeff
- **Aug 31**, 02:00 AM

Math
In xy plane, line K passes through the points A(6, -7) and B(4, 5). Does line K also pass through point C?
(1) Coordinates of Point C are ( 5, -1)
(2) Point C is equidistant from Point A and Point B.
Question Discussion & Explanation
Correct Answer- A...

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By Jeff
- **Aug 28**, 02:00 AM

Math
4% of the population of a certain country owns both a car and a boat. If 20% of those who own a boat, do not own a car, what percentage of the country's population owns a boat?
A. 5%
B. 7.5%
C. 10%
D. 12.5%
E. 15%
Question Discussion & Explanation
Correct...

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