L. The width, w, of the rectangle is 10 inches. What is the perimeter of the rectangle?
1 answer:
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Answer:
12 - 2n
Step-by-step explanation:
The n th term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 10 and d = 8 - 10 = - 2, thus
= 10 - 2(n - 1) = 10 - 2n + 2 = 12 - 2n
Data:
Humans (x) = 2 Legs
Horses (y) = 4 Legs
74 Heads
196 Legs
Solving:
Addition method
Simplify by (-4) The first equation
Now, to find the number of horses, I will use the following equation and I will replace the found value, we will have:
Number with incognito are to the left of the equality and numbers without incognito are to the right, remembering that when changing of side changes the signal.
Answer:
Humans = 50
Horses = 24
Humans (x) = 2 Legs
Horses (y) = 4 Legs
74 Heads
196 Legs
Solving:
Addition method
Simplify by (-4) The first equation
Now, to find the number of horses, I will use the following equation and I will replace the found value, we will have:
Number with incognito are to the left of the equality and numbers without incognito are to the right, remembering that when changing of side changes the signal.
Answer:
Humans = 50
Horses = 24