Bella bought 3.2 meters of ribbon to decorate her pencil case. each meter cost $0.46. how much did the ribbon cost?
2 answers:
we know that
Each meter of ribbon cost
so
by proportion
Find the cost of meters of ribbon
therefore
<u>the answer is</u>
The ribbon cost
Answer: The cost of the ribbon is $1.472.
Step-by-step explanation: Given that Bella bought 3.2 meters of ribbon to decorate her pencil case and each meter cost $0.46.
We are to find the cost of the ribbon.
We have
the cost of 1 meter of ribbon = $0.46.
So, the cost of 3.2 meters of the ribbon will be
Thus, the total cost of the ribbon is $1.472.
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The red figure dilated with a scale factor of and the center of dilation is at the point (4,2) to get the green figure.
To find:
The coordinates of C' and A.
Solution:
If a figure is dilated with a scale factor k and the center of dilation is at the point (a,b), then
In given problem, the scale factor is and the center of dilation is at (4,2).
...(i)
Let the vertices of red triangle are A(m,n), B(10,14) and C(-2,11).
Using (i), we get
Therefore, the coordinates of Point C' are C'(2,5).
We assumed that point A is A(m,n).
Using (i), we get
From the given figure it is clear that the image of point A is (8,4).
On comparing both sides, we get
And,
Therefore, the coordinates of point A are (16,8).