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Natali5045456 [20]
3 years ago
8

Marla made an error when solving the equation shown. What was her error ,and how should she fix it?

Mathematics
1 answer:
AleksandrR [38]3 years ago
8 0

In Step 1, she used the Distributive Property incorrectly. She should have distributed the 3 to the 2. The equation should have been

3x + 6 + 1 = 24.

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A rectangular prism is made of 81 unit cubes. The prism is 9 unit cubes long.
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Answer:

A width: 3 unit cubes

height 3 unit cubes

Step-by-step explanation:

Volume of rectangular prism = 81 unit cubes

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w = Width of rectangular prism

h = Height of rectangular prism

Volume of a rectangular prism is given by

V=lwh\\\Rightarrow 81=9wh\\\Rightarrow wh=\dfrac{81}{9}\\\Rightarrow wh=9

The product of width and height must be 9 so from the options this is only possible when width and height both are 3 units.

So, the width is 3 unit cubes and the height is 3 unit cubes.

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