English Math (From 1) help me - 功課研習 - 校園生活

準情人ξ小夜

普通會員

I ♥ ALL ★ STAR

UID 16243
積分 1365
經驗 741
YK幣 1100
帖子 679
精華 0
註冊 2008-9-13
用戶註冊天數 5711
用戶失蹤天數 4942
來自 HK
性別男生
狀態離線

#1

正常字體

發表於 2008-9-26 05:51 PM 資料文集短消息

English Math (From 1) help me

6. Each team has a base of 200 points.For the first round , 10 points will be given for each corret answer , and no points will be deducted

for any incorrec answer or question given up . For the second round , 20 points will be given for each correct answer , and 10 points

will be deducted for each incorrect answer or qustion given up

a.Team A answered x questions correctly in the first round . Find the score of tea A after the first round.

b.In the second round , team A answered y qus\estions correctly , z questions wrongly and gave up 4 questions . Find the score of

team A after these two rounds .

[ 本帖最後由準情人ξ小夜於 2008-9-26 06:35 PM 編輯 ]

準情人ξ小夜

普通會員

I ♥ ALL ★ STAR

UID 16243
積分 1365
經驗 741
YK幣 1100
帖子 679
精華 0
註冊 2008-9-13
用戶註冊天數 5711
用戶失蹤天數 4942
來自 HK
性別男生
狀態離線

#2

發表於 2008-9-26 08:46 PM 資料文集短消息

唔識呀！大家幫下我啦

`mR.H0 (-Koizora`)

管理員

C'est la vie

UID 21
積分 52341
經驗 23365
YK幣 62957
帖子 29016
精華 6
註冊 2006-11-13
用戶註冊天數 6381
用戶失蹤天數 4075
來自無人之境
狀態離線

#3

發表於 2008-9-26 08:55 PM 資料文集短消息

6. Each team has a base of 200 points.For the first round , 10 points will be given for each corret answer , and no points will be

deducted for any incorrect answer or question given up . For the second round , 20 points will be given for each correct answer , and

10 points will be deducted for each incorrect answer or qustion given up

a.Team A answered x questions correctly in the first round . Find the score of team A after the first round.

b.In the second round , team A answered y questions correctly , z questions wrongly and gave up 4 questions . Find the score of

team A after these two rounds .

a. 10x+20

b. 10x + 20y - 10z - 20

唔識做-,-我數學好廢以上答案只供參考