Last Sunday a certain store sold copies of Newspaper Afor $1.00 each and copies of Newspaper B for $1.25 each, and the store sold no other newspapers that day. If r percent of the store’s revenues from newspaper sales was from Newspaper A
and if p percent of the newspapers that the store sold were copies ofnewspaper B, which of the followingexpresses r in terms of p?
A. 100p / (125 – p)
B. 150p / (250 – p)
C. 300p / (375 – p)
D. 400p / (500 – p)
E. 500p / (625 – p)
Answer: D作者: gdboy8888 时间: 2012-3-7 19:24
Last Sunday a certain store sold copies of Newspaper Afor $1.00 each and copies of Newspaper B for $1.25 each, and the store sold no other newspapers that day. If r percent of the store’s revenues from newspaper sales was from Newspaper A
and if p percent of the newspapers that the store sold were copies ofnewspaper A, which of the followingexpresses r in terms of p?
A. 100p / (125 – p)
B. 150p / (250 – p)
C. 300p / (375 – p)
D. 400p / (500 – p)
E. 500p / (625 – p)
