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phoenix9801
- Master | Next Rank: 500 Posts
- Posts: 190
- Joined: Thu Jan 14, 2010 8:29 pm
- Thanked: 2 times
1-
In a certain school, 50 percent of all male students and 60 percent of all female students play a varsity sport. If 40 percent of the students at the school are male, what percent of the students DO NOT play a varsity sport?
2-
The average (arithmetic mean) of 6 positive numbers is 5. If the average of the least and greatest of these numbers is 7, what is the average of the 4 other numbers?
3-
Poplar trees are planted on both sides of a straight street that is of a kilometer in length. Each tree is planted in a plot that is 1 meter in length, and there are 16 meters of space between adjacent plots on the same side of the street. What is the maximum number of poplar trees lining the street?
4-
Which of the following equations is NOT equivalent to 16a2 = b2 - 9?
a- 16a2 + 9 = b2
b- 64a2 = 4b2 - 36
c- 16a2 = (b + 3)(b - 3)
d- 4a = b - 3
e- a^2 = b^2 - 9 / 16
In a certain school, 50 percent of all male students and 60 percent of all female students play a varsity sport. If 40 percent of the students at the school are male, what percent of the students DO NOT play a varsity sport?
2-
The average (arithmetic mean) of 6 positive numbers is 5. If the average of the least and greatest of these numbers is 7, what is the average of the 4 other numbers?
3-
Poplar trees are planted on both sides of a straight street that is of a kilometer in length. Each tree is planted in a plot that is 1 meter in length, and there are 16 meters of space between adjacent plots on the same side of the street. What is the maximum number of poplar trees lining the street?
4-
Which of the following equations is NOT equivalent to 16a2 = b2 - 9?
a- 16a2 + 9 = b2
b- 64a2 = 4b2 - 36
c- 16a2 = (b + 3)(b - 3)
d- 4a = b - 3
e- a^2 = b^2 - 9 / 16
