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mixer [17]
3 years ago
15

The sum of five consective even numbers is less than 100.Find the maximum sum of these five numbers

Mathematics
2 answers:
Snowcat [4.5K]3 years ago
7 0
X+x+2+x+4+x+6+x+8  < 100
5x + 20 < 100
5x < 80
x < 16

so the 5 numbers are 14,16,18,20,22  and  maximum sum  = 90
Ludmilka [50]3 years ago
4 0

100/5 = 20

would be the middle number so 18 +19+20+21+22 = 100

 since you want it to be less than 100 use 17 instead of 22

so you have 17 +18+19+20+21 = 95

95 is the maximum sum

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i. 33.51 cm³

ii. 14.14 cm³

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(i) the total volume of the paper weight,

Since the paper weight is in the form of a cone, its volume is the volume of a cone V = πD²h/12 where D = diameter of cone = 4 cm and h = height of cone = 8 cm

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From similar triangles in the figure, we have

height of wooden portion, h'/radius of wooden portion, r' = height of paper weight, h/radius of paper weight, r

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So, m = 0.9 g/cm³ × 14.14 cm³ + 11.3 g/cm³ × 19.37 cm³

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