- 3 7/9 - 1 2/9 What is this answer

Mathematics

2 answers:

s2008m [1.1K]3 years ago

8 0

Answer:

-5

Step-by-step explanation:

Since the signs are alike, we add and then take the sign

-(3 7/9 + 1 2/9)

-(4 9/9)

-(5)

zaharov [31]3 years ago

5 0

Answer:

-5

Step-by-step explanation:

(-3 7/9) - 1 2/9 = -5

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I have already tryed but how in the world do i solve 2

trapecia [35]

Alright, let's factor this to get the answer.
3k^2-10k+7
To find the factors, we want to think "What will add up to -10, and multiply to (+)7?"
Because the leading coefficient is 3, we know that we can take one factor of 7 and multiply it by 3.
Thus, this factors to
(3k-7)(k-1)
(if you FOIL it it should come out to be the original equation)

From this, set both of those [(3k-7) and (k-1)] equal to zero and solve
3k-7=0
3k=7
/3
k=7/3
or
k=1

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3 years ago

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