2015-05-16
SAT
Jerry, Will, Al all work at the same company. Jerry earns 80% of Will’s salary, and Will earns 75% of Al’s salary. What percent of Al’s salary is equal to Jerry’s salary?
A. 80%
B. 75%
C. 70%
D. 65%
E. 60%
B. 75%
C. 70%
D. 65%
E. 60%
Answer
E. Jerry, Will, Al都在同一家公司工作. Jerry获得的薪资是Will的80％, 而Will获得的薪资是Al的75％. Al的薪资的百分之几等于杰瑞的?
一、分数 Fraction
| 1 — X |
分子用 a（one），分母用X的序数词 | ||||
| 1 — 2 |
a half | 1 — 4 |
a quarter | 1 —— 100 |
a（one）hundredth |
| A — B |
（A > 1）—— 分子A用基数词，分母B用序数词再 + s ，整数 and 分数 | |||||
| 2 — 3 |
two thirds | 4 — 5 |
four fifths | 5 | 2 — 7 |
five and two sevens
|
二、小数 Decimal
点 —— point ，0可读 zero / nought / O ：
0.1 —— zero point one
123.123 —— one hundred and twenty-three point one two three
三、 百分数 Percentage
% —— percent ：
5% —— five percent
0.123 %—— zero point one two three percent
四、 + – × /
1. + plus / add ：2 + 10 = ？ 2 + 10 = 12
How much is two plus ten?
Two plus ten is twelve.
Two plus ten is twelve.
2. – minus ： 8 – 5 = ？ 8 – 5 = 3
How much is eight minus five?
Eight minus five is three.
Eight minus five is three.
3. × times / mutiplied by ： 2 × 3 = ？ 2 × 3 = 6
How much is two times three.?
Two times three is six.
Two times three is six.
4. / divided by ： 10 / 4 = ？ 10 / 4 = 2.5
How much is ten divided by four?
Ten divided by four is two point five.
Ten divided by four is two point five.
练习
翻译： decimal fraction 十进制分数，小数
A fraction whose denominator is some power of 10, usually indicated by a dot (decimal point or point) written before the numerator: as 0.4 = 4/10; 0.126 = 126/1000.
A fraction whose denominator is some power of 10, usually indicated by a dot (decimal point or point) written before the numerator: as 0.4 = 4/10; 0.126 = 126/1000.
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