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Please explain these math questions!


1) How many cm2 in 1m2?

2)How much are 7 pencils at 3 for $1.65

3) Is a hectare roughly equal to 2 tennis courts or 2 soccer fields?

4) Add all the odd numbers between 20 and 30. (I don't understand)

5) How many axes of symmetry has a rhombus?

Verified Answer :

mumsy
  1. 1m=100 cm
    1m^2= 10,000 cm^2

    2.  if 3 pencils are 1.65, then 1 pencil is 1.65/3=$ 0.55
    7 pencils will cost 7* $    0.55= $3.85

    3.1 ha is 10,000 m^2, and 1 soccer filed is roughly 100m *110 m
    so it makes sense that 1 ha is roughly 2 tennis courts
    4.odd numbers between 20 and 30 are
    21,23,25,27,29
    lets add the,m
    21+23+25+27+29=125
    5 a rhombus has 2 lines of symmetry

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