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3 years ago

How many of the students correctly applied only the associative property to rewrite the expression

Mathematics

1 answer:

Lapatulllka [165]3 years ago

5 0

Answer:

Only one student, Melinda used it right.

Step-by-step explanation:

Associative property lets us place our brackets the way we want and the result would be unchanged.

Here: (13 + 15 + 20) + (20 + 47 + 18).

So, we can place the brackets in any form, like (13 + 15) + (20 + 20) + (47 + 18).

There are many ways to do it. Melinda's was is yet another example.

Note that Associative property does not hold for subtraction.

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3 years ago

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Verdich [7]

50 divided by 13 on both sides
13y/13 =0 50/13 = 3.846153....
change it to y= 3 since 4 is to big.
3•13 = 39
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Final answer
x=11
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3 years ago

How many of the students correctly applied only the associative property to rewrite the expression​

How many of the students correctly applied only the associative property to rewrite the expression