Un minerai fournit 20% de sa masse en fonte.

Quelle quantité de minerai faut-il pour obtenir 1820kg de fonte ?

Merci d'avance

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

What’s -11-33k and factor each expression completely