A 3-column table has 1 row. The first column is labeled Age with entry 7 years. The second column is labeled Mean with entry 49
1 answer:
You might be interested in
Answer:
Natalia's work is wrong.
Step-by-step explanation:
Natalia divided a decimal number by an entire number. Since division is a operation derived from multiplication, the best approach to check if work was good is multiplying the given result by denomination, that is:
1) Given.
2) Definition of addition.
3) Distributive property.
4) Definitions of multiplication and decimal number.
5) Definition of division/Associative property.
6) Associative property.
7) Definition of multiplication.
8) Definition of divsion.
9) Defintion of decimal number.
10) Definition of addition/Result
Natalia's work is wrong.
Let,
- Mass of the steel be 108x
- Mass of the copper be 7x
- Then, Total mass = 108x + 7x = 115x
Given,
- Total mass of the coin = 230 mg
That means,
⇛ Total mass of the coin = 230 mg
⇛ 115x = 230 mg
⇛ x = 230 mg/115
⇛ x = 2 mg
Then,
- Mass of the steel = 108(2) = 216 mg
- Mass of the copper = 7(2) = 14 mg
☁️ ANSWER - 14 mg (Mass of copper)
<u>━━━━━━━━━━━━━━━━━━━━</u>
9514 1404 393
Answer:
a.
Step-by-step explanation:
For an even-index radical, ...
This lets us simplify the given expression as follows: