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fiasKO [112]
3 years ago
12

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
3 0
1 joker because there is a majority of 1 joker
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√27

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marin [14]

Answer:

D

Step-by-step explanation:

So we have the equation:

A=\frac{1}{2}(12)(3+7)

And we want to find out which of the answer choices is <em>not</em> equivalent.

Thus, let's go through each of the choices.

A)

We have:

\frac{12(3+7)}{2}

This is correct.

Our original equation can be written as:

A=\frac{1}{2}(\frac{12(3+7)}{1})

And if we multiply straight across:

A=\frac{12(3+7)}{2}

We'll get choice A. So choice A is correct.

B)

We have:

6(3+7)

This is also correct.

From our original equation:

A=\frac{1}{2}(12)\cdot(3+7)

If we multiply the first term together:

A=6(3+7)

We'll get choice B. So, choice B is correct.

C)

We have:

0.5(12)(10)

This is correct as well.

If we reduce 1/2 to decimal form and add the operations within the parentheses in the original equation, we will get:

A=\frac{1}{2}(12)(3+7)\\A=0.5(12)(10)

So, C is also correct.

D)

We have:

\frac{12}{2}\times\frac{10}{2}

Note that this is not correct.

This attempted to use the distributive property. However, the distribute property does <em>not work</em> for multiplication. For instance:

3(2+1)\text{ indeed equals } 3(2)+3(1)

However:

3(2\times1)\text{ does not equal} 3(2)\times3(1)

So, choice D is not equivalent.

So choice D is our answer :)

If we evaluate it, we will get 30, in contrast to the 60 of the others.

5 0
3 years ago
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