1. One night a certain motel rented 3/4 of its rooms, including 2/3 of its air-conditioned rooms. If 3/5 of its
rooms were air-conditioned, what percent of the rooms that were not rented were air-conditioned?
(A) 20%
(B) 33 1/3%
(C) 35%
(D) 40%
(E) 80%
[Ans E]
***no idea.***
2. The cost to rent a small bus for a trip is x dollars, which is to be shared equally among the people taking the trip. If 10 people take the trip rather than 16, how many more dollars, in terms of x, will it cost per person?
(A) x/6
(B) x/10
(C) x/16
(D) 3x/40
(E) 3x/80
[Ans E]
***Problems setting up the algebraic eq.***
3.If x is an integer and y=3x+2, which of the following CANNOT be a divisor of y ?
(A) 4
(B) 5
(C) 6
(D) 7
(E) 8
[Ans C]
***I guessed at it from plugging in 0-9 for x, is there a faster way?***
Thanks in advance,
Matt
rooms were air-conditioned, what percent of the rooms that were not rented were air-conditioned?
(A) 20%
(B) 33 1/3%
(C) 35%
(D) 40%
(E) 80%
[Ans E]
***no idea.***
2. The cost to rent a small bus for a trip is x dollars, which is to be shared equally among the people taking the trip. If 10 people take the trip rather than 16, how many more dollars, in terms of x, will it cost per person?
(A) x/6
(B) x/10
(C) x/16
(D) 3x/40
(E) 3x/80
[Ans E]
***Problems setting up the algebraic eq.***
3.If x is an integer and y=3x+2, which of the following CANNOT be a divisor of y ?
(A) 4
(B) 5
(C) 6
(D) 7
(E) 8
[Ans C]
***I guessed at it from plugging in 0-9 for x, is there a faster way?***
Thanks in advance,
Matt
