七下數學-二元一次聯立方程式

七下數學-二元一次聯立方程式

7th Grade

20 Qs

quiz-placeholder

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七下數學-二元一次聯立方程式

七下數學-二元一次聯立方程式

Assessment

Quiz

Mathematics

7th Grade

Hard

Created by

蔡佩旻 蔡佩旻

Used 3+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列何者為二元一次方程式?

3x+4y

2x-5y+3=z 

x+2/y=10

2x+y/3-1=10

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

媽媽織一條圍巾要花 8 小時,織一雙手套要花 5 小時。若媽媽織了 x 條圍巾和 y 雙手套,共花了 68 小時,則依題意可列出二元一次方程式為。( 以 x、y 表示 )

5x+8y=68

8x+5y=68

5x-8y=68

8x-5y=68

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

小金有 x 元,大川有 y 元,根據下列哪一個選項的敘述可列出二元一次方程式 4x-30=y?

小金的錢是大川的 4 倍少 30 元

小金的錢是大川的 4 倍多 30 元

大川的錢是小金的 4 倍少 30 元

大川的錢是小金的 4 倍多 30 元

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

下表xy的值分別代表二元一次方程式6xy=5的解,試求下列何者錯誤?

a=-11

b=7

c=1

d=- 3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

xy為整數,則方程式5xy=23共有多少組解?

無限多組

4

5

6

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

4 ( 3y-x+5 )-5 (-x+6y+4 )=?

9x-18y

x+18y

x-18y

x-32y

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

11 x+26 y-42

11 x+26 y-42

(11 x+26 y-42)/20

(11 x-26 y+42)/20

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