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
Answer:
7.2 minutes per mile
Step-by-step explanation:
If we assume the description means y = 7.2x, the rate 7.2 means each increase in x of 1 mile results in an increase in y of 7.2 minutes. That is the rate is 7.2 minutes per mile.
18.75 centimeters because it’s 37.5 divided by 2
Answer:
2(x + 4) / 6(x² - 3x - 28)
Step-by-step explanation:
Area of a rectangle = length × width
Length = 2/(x² - 3x - 28)
Width = x² - 16/6x - 24
= (x + 4)(x - 4) / 6(x - 4)
= (x + 4) / 6
Area of a rectangle = length × width
= 2/(x² - 3x - 28) × (x + 4) / 6
= 2(x + 4) / (x² - 3x - 28)6
= 2(x + 4) / 6x² - 18x - 168
= 2(x + 4) / 6(x² - 3x - 28)
Area of a rectangle =
2(x + 4) / 6(x² - 3x - 28)
Answer:
Easy, 4 units
Step-by-step explanation:
