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Dominik [7]
3 years ago
5

Jill’s teacher asked her to construct a rectangular prism from unit cubes. She has built the structure about. In order for Jill

to complete her assignment, how many unit cubes will Jill need to add to the below structure? Explain how you were able to figure out how many more cubes will be needed. Is there a different way to solve this situation?

Mathematics
1 answer:
malfutka [58]3 years ago
5 0

Answer:

<u />

  • <u>36 cubes</u>
  • <u>There are several forms to figure it out: see two different ways explained below.</u>

Explanation:

The first way to figure out <em>how many more cubes Jill will need to add to complete the structure </em>until forming a <em>rectangular prism</em>  is to add the cubes from column to colum,

The first column is complete: it has four rows each with 4 cubes.

The second column (the one next to the right of the first column) has three rows. Then Jill has to add one more row. This is 4 cubes.

The third column has two rows. Then, Jill will need to add two rows with 4 cubes each, for a total of 8 cubes. So far, the count is 4 + 8 = 12 cubes.

The fourth and fifth columns have just one row. Then, Jill will need 3 rows for each column, making it 2 × 3 × 4 = 24 cubes.

The total final count is 12 + 24 = 36 cubes. ← answer

There are different ways to figure out the number of cubes needed to complete the rectangular prism. This is another one:

How many cubes shall the complete pyramid have? : 4 × 4 × 5 = 80 (length × width × height).

How many cubes does the shown incomplete structure have?: 4×4 + 3×4 + 2×4 + 4 + 4 = 16 + 12 + 8 + 4 + 4 = 44.

Difference: 80 - 44 = 36 cubes. ← answer

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x = 8

Step-by-step explanation:

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6x - 2 = 46

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Yakvenalex [24]

Step-by-step explanation:

Here important information is missing. That is total number of divide.

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5 0
3 years ago
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ivann1987 [24]
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Explanation: The Least Common Multiple (LCM) is the smallest number that two or more numbers will divide into evenly. NOTE: to find LCM you first need to know how to find GCD.

First we will find LCM for first two numbers ( 16 and24 ).

Step 1: Find the GCD (Greatest Common Divisor ) of 16 and 24 which is 8.

Step 2: Multiply the numbers 16 and 24 together ( 16 * 24 = 384 )

Step 3: Divide the 384 with 8. (384/8 = 48)

So, the LCM of 16 and 24 is 48.

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8 0
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