1)How long does this bridge ?

2)How weight does her brother ?

3)How often does your mother go shopping?

4)How much does this shirt costs?

\(\dfrac{41}{10}:\dfrac{9}{4}=\dfrac{x}{7,3}\)

<=>\(\dfrac{82}{45}=\dfrac{x}{7,3}\)

<=>\(x=\dfrac{82.7,3}{45}=\dfrac{2993}{225}\)

s o hoc sinh nam la:

57,5 +3 = 63,5 (hoc sinh )

lop do co so hoc sinh la:

57,5  +  63,5  = 121 (hoc sinh)

    dap so : 121 hoc sinh 

97,5 nhe ban!

318,5% : 5 = 63,7% = \(\frac{637}{1000}\)

vi trong 4 nam co mot nam nhuan nen 4 nam lien tiep co1461 ngay