3 years ago

15 POINTS 8m+4m+7m-2n what’s the answer

Mathematics

2 answers:

Virty [35]3 years ago

7 0

Answer:

15m +2n

Step-by-step explanation:

8m+4n+7m-2n

Combine like terms

8m +7m +4n-2n

15m +2n

Romashka-Z-Leto [24]3 years ago

6 0

To simplify combine like terms:

8m + 7m = 15m

4n - 2n = 2n

Simplified: 15m + 2n

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3 years ago

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Explain how the commutative property of addition,the Associative property of addition and mental math can help you find 75.2+(57

4vir4ik [10]

Answer: The sum of 75.2+(57.376+24.8) is 157.376.

Explanation:

The commutative property of addition states that,

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The associative property of addition states that,

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The given expression is 75.2+(57.376+24.8).

First use commutative property of addition in the parenthesis.

$75.2+(57.376+24.8)=75.2+(24.8+57.376)$

Now use associative property of addition.

$75.2+(24.8+57.376)=(75.2+24.8)+57.376$

Now simplify the expression,

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Therefore, the sum of 75.2+(57.376+24.8) is 157.376.

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3 years ago

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