我问的可能都很简单~~但大家不要嫌弃我啊~~
想问问翻译
1.
The numbers of cars sold at a certain dealership on six of the last seven business days were 4, 7,2,8,3,and6,respectively. If the number of cars sold on the seventh business day was either 2,4, or 5, for which of the three values does the average number of cars sold per business day for the seven business days equal the median number of cars sold per day for the seven days?
2.
A straight pipe 1 yard in length was marked off in fourths and also in thirds. If the pipe was then cut into separate pieces at each of these markings, which of the following gives all the different lengths of the pieces, in fractions of a yard?
3.
List T consists of 30 positive decimals, none of which is an integer, and the sum of the 30 decimals is S. the estimated sum of the 30 decimals, E, is defined as follows. Each decimal in T whose tenths digit is even is rounded up to the nearest integer, and each decimal; E is the sum of the resulting integers. If 1/3 of the decimals in T have a tenths digit that is even, which of the following is a possible value of E-S?
4
In an electric circuit, two resistors with resistances x and y are connected in parallel. In this case, if r is the combined resistance of these two resistors, then the reciprocal of r is equal to the sum of the reciprocals of x and y. what is r in terms of x and y?
5.
A store currently charges the same price for each
towel that it sells. If the current price of each towel
were to be increased by $1, 10 fewer of the towels
could be bought for $120, excluding sales tax. What is
the current price of each towel?
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