On the right side, there are
• 2•2 = 4 atoms of Nb
• 2•5 = 10 atoms of O
so among the reactants on the left, the reaction is balanced as
4 Nb + 5 O₂ → 2 Nb₂O₅
Answer:
153.86 un²
Step-by-step explanation:
Area circle = πr²
Radius is the distance of the center to the edge(perimeter)
Radius = 7
Area circle = 3.14(7)²
Area circle = 3.14 * 49 = 153.86
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-Chetan K
Answer: Plan A will cost less than Plan B for phone use that is less than or equal to 100 minutes
Step-by-step explanation:
Let m be the number of minutes of phone use.
We can convert $35 and $36 to 3500 cents and 3600 cents respectively.
Then, in Plan A, it would cost 3500 + 6m and in Plan B, it would cost 3600 + 5m.
Since we want Plan A to cost less, we can set up an inequality saying:

We can subtract 3500 + 5m from both sides:

Therefore, Plan A will cost less than Plan B for phone use that is less than or equal to 100 minutes.
<em>472 - 120 = 352 students</em>
<em>--</em>
<em>352 ÷ 8 = 44 cabins</em>
<em>--</em>
<em>so </em><em>c) 44 cabins </em><em>need to be rented</em>
<em />
X=every pound added
hopes this helps