Answer:
Correct option: third one -> 12
Step-by-step explanation:
In a polygon with 'n' vertex, we can trace diagonals from one vertex to all vertices, except to the vertex chosen and the two adjacent vertices (because we would have sides and not diagonals), so we would have 'n - 3' diagonals.
If we have a polygon with 15 vertex, the number of diagonals from one vertex is 15 - 3 = 12.
Correct option: third one
The shapes being similar means they are an even ratio to each other. the one on the left is 16/12 or 4/3 the one on the right.
this means you can say
and then solve for x.
(x-1)=4.5
x=5.5
The cost of one sweatshirt is $19.
Step-by-step explanation:
Let,
Cost of one pair of jeans = x
Cost of one sweatshirt = y
According to given statement;
5x+2y=233 Eqn 1
3x+4y=193 Eqn 2
Multiplying Eqn 1 by 2
Subtracting Eqn 2 from Eqn 3
Dividing both sides by 7
Putting x=39 in Eqn 2
Dividing both sides by 4
The cost of one sweatshirt is $19.
Keywords: linear equation, subtraction
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Hello,
1234+ 1243+ 1324+ 1342+ 1423+ 1432+ 2134+ 2143+ 2314+ 2341+ 2413+ 2431+ 3124+ 3142+ 3214+ 3241+ 3412+ 3421+ 4123+ 4132+ 4213+ 4231+ 4312+ 4321= 66660