Answer:
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- <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
18/40 divides by 2 is 9/20. So your answer would be 9/20
You keep, change, and flip.
Keep 5, change ÷ into x, and flip 3/4 into 4/3.
5 x 4/3 = 20/3 = 6 and 2/3.
That's the answer: 20/3 or (6 and 2/3).
Hope this helps
Answer:
Average (additional) income = 100 - 50/x
Step-by-step explanation:
Ryan's additional income = 100x - 50 , where x = quantity of colored watch bands
Ryan's additional average income = Income / Quantity of watches sold
(100x - 50) / x
= 100 - 50/x
Answer:
b) Take the current height, and add up 15.
c) y = 80x + 15
where y is the height of the water in the pool, in centimeters
where x is the time since the hose is in the pool, in hours
d) 180 = 80x + 15
165 = 80x
x = 165/80 = 2.0625 hours, which is also 2 hours and 3 minutes.
