[計量] 想請教幾題計量?
BB TEST10
P.399
18:the daily rate for a hotel room that sleeps 4 epople is $39 for one
person and x dollars for each additional person. If 3 people take the
room for one day and each pays $21 for the room, what is the value of
x?
ANS:12
TEST22 P860
27: City Y has installed 30 parking meters at 15-foot intervals along a
straight street. what is the number of feet between the first meter
and the last meter
ANS:435
P.897
14: after 2 females leave a party. there are twice as many males as
females as males
ANS: the total number of people left at the party after the 9
males leave > 8
p.741
29:of the positive integers that are multiples of 30 and are less
than or equal to 360, what fraction are multiples of 12?
ANS:1/2
P.760
28:S is the sum of three consecutive integers, the greaest of which is x. In
terms of S, which of the following is the sum of three consecutive
integers, the least of which is x?
ANS:S+6
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