|
|
$$\frac{3.003}{2.002}$$
|
|
|
If $$0\le x\le 4$$ and y< 12, which of the following CANNOT be the value of xy?
|
|
OG12 OG15 OG16
|
if x=-1,then $$\frac{x^4-x^3+x^2}{x-1}$$
|
|
OG12 OG15 OG16
|
An empty pool being filled with water at a constant rate takes 8 hours to fill to $$\frac{3}{5}$$ of its capacity. How much more time will it take to finish filling the pool?
|
|
OG12 OG15 OG16
|
A positive number x is multiplied by 2, and this product is then divided by 3. If the positive square root of the result of these two operations equals x, what is the value of x ?
|
|
OG12 OG15
|
A tank contains 10,000 gallons of a solution that is 5 percent sodium chloride by volume. If 2,500 gallons of water evaporate from the tank, the remaining solution will be approximately what percent sodium chloride?
|
|
|
If x + 5y = 16 and x = - 3y, then y =
|
|
OG12 OG15
|
A committee is composed of w women and m men. If 3 women and 2 men are added to the committee, and if one person is selected at random from the enlarged committee, then the probability that a woman is selected can be represented by
|
|
|
If the product of the integers w, x, y, and z is 770, and if 1
|
|
OG12 OG15
|
The positive integer n is divisible by 25. If $$\sqrt{n}$$ is greater than 25, which of the following could be the value of $$\frac{n}{25}$$
|
|
|
$$\frac {1}{1+(\frac{1}{2+\frac1 3})}$$=
|
|
OG12 OG15 OG16
|
During a certain season, a team won 80 percent of its first 100 games and 50 percent of its remaining games. If the team won 70 percent of its games for the entire season, what was the total number of games that the team played?
|
|
OG12 OG15
|
if 1+$$\frac{1}{x}=2-\frac{2}{x}$$,then x=
|
|
OG12 OG15 OG16
|
Last year, for every 100 million vehicles that traveled on a certain highway, 96 vehicles were involved in accidents. If 3 billion vehicles traveled on the highway last year, how many of those vehicles were involved in accidents? (1 billion = 1,000,000,000)
|
|
OG12 OG15 OG16
|
Of the final grades received by the students in acertain math course, $$\frac{1}{5}$$ are A's, $$\frac{1}{4}$$ are B's,$$\frac{1}{2}$$ are C's,and the remaining 10 grades are D's. What is the number of students in the course?
|
|
|
A company accountant estimates that airfares next year for business trips of a thousand miles or less will increase by 20 percent and airfares for all other business trips will increase by 10 percent. This year total airfares for business trips of a thousand miles or less were $9,900 and airfares for all other business trips were $13,000. According to the accountant's estimate, if the same number of business trips will be made next year as this year, how much will be spent for airfares next year?
|
|
OG12
|
 The table above shows the number of students in three clubs at McAuliffe School. Although no student is in all three clubs, 10 students are in both Chess and Drama, 5 students are in both Chess and Math, and 6 students are in both Drama and Math. How many different students are in the three clubs?
|
|
OG12
|
The ratio of two quantities is 3 to 4. If each of the quantities is increased by 5, what is the ratio of these two new quantities?
|
|
OG12
|
If the average (arithmetic mean) of the four numbers K, 2K + 3, 3K - 5, and 5K + 1 is 63, what is the value of K?
|
|
OG12
|
If p is an even integer and q is an odd integer, which of the following must be an odd integer?
|