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SVEN [57.7K]
3 years ago
11

Which property would justify step 2 of the following equation?

Mathematics
1 answer:
IgorC [24]3 years ago
6 0
This is the distributive property of multiplication. The -2 was distributed into the parentheses.
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Which number-line model represents the sum of 1.25+(-0.75)?
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Solution:

<u>A few tips...</u>

  • Tip-1: If "+" and "-" are multiplied, it gives a result of "-".
  • Tip-2: If "-" and "-" are multiplied, it gives a result of "+".
  • Tip-3: If "+" and "+" are multiplied, it gives a result of "-".

<u>Changing the sign of the given equation.</u>

  • 1.25 + (-0.75)
  • => 1.25 - 0.75                                        [Sign changes according to tip-1.]

This could only mean that the arrow would go to <u>1.25 units forward.</u> Then a second arrow will be drawn to go <u>0.75 units back.</u>

The graph that matches with the above info is Option C.

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