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3 years ago

Whats the greatest common factor of 20 and 40

Mathematics

2 answers:

ollegr [7]3 years ago

5 0

Greatest common factor is 20

katen-ka-za [31]3 years ago

3 0

Factors of 20 - 1 2 4 5 10,20

Factors of 40 -1, 2, 4, 5, 8, 10, 20

Then the greatest common factor is 20.

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cricket20 [7]

Answer:

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3 years ago

0.3(3a-4)-0.05(8a)(-7a)

Anit [1.1K]

Answer:

2.8a²+0.9a - 1.2

Step-by-step explanation:

Given the expression 0.3(3a-4)-0.05(8a)(-7a)

Expand using the distributive law

0.3(3a-4)-0.05(8a)(-7a)

0.3(3a)-0.3(4)-0.05(8a)(-7a)

0.9a-1.2 - 0.05(8a)(-7a)

0.9a - 1.2 + 2.8a²

Rearrange

2.8a²+0.9a - 1.2

Hence the required expression is 2.8a²+0.9a - 1.2

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