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3 years ago

Which property does this represent -3x1=-3

Mathematics

1 answer:

katrin2010 [14]3 years ago

4 0

The property used is: Multiplicative identity

Step-by-step explanation:

We need to identify the property in the equation : $-3\times 1=-3$

The property used is: Multiplicative identity

Multiplicative identity

The multiplicative identity property is defined as if you multiply a number by 1, the result of multiplication is that original number.

In the given expression $-3\times 1=-3$ -3 is multiplied by 1 to get -3 so, multiplicative identity.

Keywords: Properties of Multiplication

Learn more about Properties of Multiplication at:

#learnwithBrainly

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Answer:

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Step-by-step explanation:

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Answer:

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Elena-2011 [213]

The weight in 1980 is $\frac{4k}{5}$ kilograms

Solution:

From 1980 to 1990, Lior’s weight increased by 25%

His weight is "k" kilograms in 1990

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This is a percentage increase problem

Let "x" be the weight in kilograms in 1980

The percentage increase is given by formula:

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Here,

Initial value in 1980 = x

Final value in 1990 = k

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Substituting the values in formula,

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