please help me on problem 8 and 9 of my teacher created problem

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17-03-2015
Mathematics

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please help me on problem 8 and 9 of my teacher created problem

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If a=9c, then what is c equal to?

Аноним Аноним · Answer 1 · 2015-03-17T15:59:44-04:00

Аноним Аноним

17-03-2015

number 8 is C 251.2 formula multiply 40*3.14=125.6 125.6*2=251.2
and 9 is C get the area of the rectangle 15*5=75 and now of the circle 3.14*2.5^2=78.5 now divide 78.5/2=39.25 then add 39.25+75=114.3.

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