
翰林國中數學2上CH4-3 應用問題
Authored by 翰林數學 翰林數學
Mathematics
8th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
小娟和小美兩姐妹計算自己的零用錢,若小美的零用錢是小娟的 4 倍多 2 元,若媽媽再給小美 30 元,則小美的所有錢恰好是小娟的平方,請問小娟原有多少元?
8
18
24
34
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
若兩連續正偶數的平方和為 650,且其中一數為 x,則依題意可列出一元二次方程式為何?
(x+1)2+x2=650
x2+(x+2)2=650
(2x)2+(2x+1)2=650
(3x+1)2+(3x-1)2=650
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
如圖,有一塊長方形土地面積為 480 平方公尺,中間開闢一長方形的花圃,長為 20 公尺,寬為 16 公尺,並在四周鋪設等寬的走道,寬度為 x 公尺,則下列有關 x 的關係式哪一個成立?
(20+2x)(16+2x)=480
(20+x)(16+x)=480
2(16x+20x)=480-20×16
2(20x+2x)+2(16+2x)=480-20×16
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
小名現在年齡為 14 歲,再過 3x 年後,正好是 5x2 歲,則 x=?
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
翰翰班上在校慶園遊會中販賣可麗餅,已知可麗餅每個賣 x 元,當天共賣出(2x-30)個,得 2000 元,則可麗餅每個賣多少元?
40
35
30
25
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
奶茶每杯賣 x 元,如果賣了(x-13)杯,共得 300 元,試問奶茶一杯多少元?
20
25
30
35
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
有一個長方形的長、寬分別為(x+2)公分及(1-x)公分,若其面積為 2 平方公分,則 x 為何?
2 或 1
-1 或 -2
0 或 -1
沒有解
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