Experience the convenience of getting your questions answered at IDNLearn.com. Explore thousands of verified answers from experts and find the solutions you need, no matter the topic.

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?


Sagot :

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