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babunello [35]
2 years ago
15

PLEASEEE HELP!!! 20 POINTSS

Mathematics
2 answers:
Salsk061 [2.6K]2 years ago
8 0

Answer:

Option c

Step-by-step explanation:

-7 + (19 + 5) = (-7 + 19) + 5

LHS = -7 + (19+5)

       = -7 + 24

       =  17

RHS = (-7 + 19) + 5

       = 12 + 5

        = 17

LHS = RHS

associative property of addition: When three or more numbers are added, the result remains same regardless how the numbers are grouped

Masteriza [31]2 years ago
3 0

Answer:

C

Step-by-step explanation: I think it is right but I don't know I am sorry if I get it wrong!

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The order is not quite correct.

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- 7  + (- 55 + 7) ÷ -6      

This is where the real problem is. -55 + 7 goes down. This gives - 48

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You do  the division by - 6 before adding. Adding - 7 to the result of the division is your very last step. Think BedMas.

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The 8 is the result of the division. -48/-6 = 8. the -7 and the 8 are added. You get 1.

1 Answer


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3 years ago
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