英语或数学达人请进!
问题描述：
英语或数学达人请进!
1.The sum of 4 consecutive even integers is 76.What is the 3rd highest number?
2.A piece of rope 126 feet long is cut into 3 pieces.The second piece is twice as long as the first piece,and the third piece is 3 times as long as the second?How long is the second piece of rope?
3.The length of a certain rectangle is 3 more than its width.If the length is tripled and the width is double,the perimeter of the new rectangle is 42cm more than the original.What is the area of the original rectangle?
我刚到国外,明天要交这些题,非常急切!
答
1.四个连续的偶数和为76,求第3大的数为?
2.一条绳子长126英尺,分成3份.第二份是第1份的2倍,第3份是第2份的3倍,问地2份长几?
3.一矩形的长是宽的3倍.如果长变为原来的3倍,宽变为原来的两倍之后,周长比原来的长42CM,求原来矩形的面积