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f.1升f.2 maths功課~幫下我呀~
1. The lenth of a retangle is 3x cm and the width is (2x + 1) cm .
If the lenth is the 11cm longer than the width,find the lenth of the retangle.
2. If the 15th term of the sequence 3 , 3 + x , 3 + 2x , 3 + 3x , ......is 31,
find the 34th term of this seqience.
3. Marry spends $825 to buy a T-shirt and a coat.The price of T-SHIRT is $258 cheaper thanHalf of the price of the coat.
How much is the coat?
4. Some sweets are shared by a group of children.If each child gets 5 sweets , 8 sweets will be left.
If each child wants to get 7 sweets, 10 more sweets will be needed . How many sweets are there?
5. Suppose each kilogram of pork costs $15 and each kilogram og beef costs$21. If Susan uses$140
to buy 8kilograms of pork and beef altogether,how many kilograms of beef does she buy?
6. Find two consecutive integers such that 3/5 of the larger number exceeds 1/4 of the smaller one by 5又2份之一
7. 把64寫成連續奇數之和。(提示 : 64為正方形數)
[ 本帖最後由 Elaine 於 2007-8-26 11:33 AM 編輯 ]
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