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This is often confusing because in everyday life people might say "how much do you weigh?" to which you might say "60kg", 60 kg is actually your mass and when we talk about weig...

La mia famiglia è composta da cinque persone: me, mia madre, mio padre e i miei due fratelli gemelli. Mia madre ha quaranta anni,  lavora in banca, alla BNL; mio padre, quarantadue anni,  fa l'nsegnante e...

Depending on what you prefer, you can either substitute or you can try to solve this by elimination. I'll explain both. 1) x - 2y = 1 2) x² - xy +y² = 1 If solving by elimination, yo...

diffusion is the movement of particles from a high concentration to a low concentration through a semi permeable membrane. an example would be the movement of food molecules through the gut wall as they p...

Total sales abroad: 20000 x 4 euros = 80000 euros Pound amount = Euro amount x ER Before ER change: 80000 x1.13 =90400 pounds After ER change: 80000 x 1.08= 86400 pounds 864-904 = -4000 pounds Therefore, ...