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9 t +[500 q-(500 kg-5x800 hg)x9]=? q

t=tona
q=quintal
kg=kilogram
hg=hectogram

Va rog mult,ajutati-ma!!



Răspuns :

9 t + [500 q - ( 500 kg - 5 x 800 hg) x 9 ] =? q

90 q + [ 500 q - ( 5 q - 4 000 hg ) x 9 ] = 581 q  

= 90 q + [ 500 q - ( 5 q - 4 q ) x 9 ] =

= 90 q + ( 500 q - 1 q x 9) = 

= 90 q + 491 q =

= 581 q 

Am transformat t,  kg, hg in q ( quitale) .

9 t = 90 q
500 kg = 5 q 
4 000 hg = 4 q