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1下 1-1 二元一次方程式

Authored by 康軒數位 康軒數位

Mathematics

7th Grade

Used 63+ times

1下 1-1 二元一次方程式
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4

-1

-4

-3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

x=2,y=-1是下列哪一個二元一次方程式的解?

3x-2y=4

2xy=-5

y=3x-8

2xy=5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪一組數對不是3xy+2=0的解?

(0 , 2)

(-1 , 1)

(2 , 8)

(1 , 5)

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

阿輝在社區的垃圾箱中整理出x公斤的廢紙和y公斤的鋁罐,已知廢紙每公斤回收價2元,鋁罐每公斤回收價6元,請問阿輝總共整理出價值多少元的回收資源?

xy

2x+6y

6x - 12y

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

小玉的撲滿中有50元硬幣x個,10元硬幣y個,則下列何者錯誤

撲滿中50元硬幣共值50x

硬幣共有(xy)個

撲滿中10元硬幣共值10y

撲滿中共有(10x+50y)元

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列何者為二元一次方程式?

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

柯南原有500元,如果他在日本料理店買單價為40元的茶碗蒸x碗,又買了單價30元的手捲y個,那麼他剩下多少元

40x+30y

500-40x+30y

500-40x-30y

500-70xy

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