SOLUTION: 31. Write the decimal equivalent, using the bar notation. 2/9 10. Subtract. 6 3/10 - 4 11/15 18. Find the area of the shaded part in the figure. Use 3.14 for PIE and r

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Question 148731This question is from textbook Basic Math Skills with Geometry
: 31. Write the decimal equivalent, using the bar notation. 2/9
10. Subtract. 6 3/10 - 4 11/15

18. Find the area of the shaded part in the figure. Use 3.14 for PIE and round your answer to one decimal place. It is a circle inside of a square with each side being 15ft.
21. Complete the statement, using the symbol < or >.
15/17 __ 0.815

This question is from textbook Basic Math Skills with Geometry

Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
31. Write the decimal equivalent, using the bar notation. 2/9
= 0.2 with a bar over the 2
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10. Subtract.
6 3/10 - 4 11/15
= 63/10 - 71/15

= (3*63/30) - (2*71/30)
= (189 - 142)/30
= 47/30
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18. Find the area of the shaded part in the figure. Use 3.14 for PIE and round your answer to one decimal place. It is a circle inside of a square with each side being 15ft.
I don't know which part is shaded.
The area of the square is 15^2 = 225 sq ft
The area of the circle is (3.14)(7.5)^2 = 176.625
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21. Complete the statement, using the symbol < or >.
15/17 __ 0.815
17/17 R 815/1000
Cross multiply to get:
17000 R 815*17
17000 R 13855
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Since 17000 > 13855
Therefore (15/17) > 0.815
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Cheers,
Stan H.