14x+2y=6 (1)
-7x-2y= -13 (2)
Multiply (2) by 2, we have:
-14x-4y= -26 (3)
Take (1)+(3), we can solve and get x= -1, y= 10~
1. squaring
2. four triangles and the square with side length "c"
3. big square (side length: a+b)
Answer:
30 cm is the perimeter.
Step-by-step explanation:
To find the perimeter of this figure, add up all the lengths of the sides:
6 cm
4 cm
9.5 cm
4 cm
6.5 cm
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30 cm is the perimeter.
9 is 18% of 50. So, 50 percent also written as 50% means 50 out of 100 parts. Since there are exactly two 50s in 100, fifty percent is the same number as one half. 50 percent=0.5 in but as a fraction, its 1/2.
