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Firstly we need to identify what is the underlying principle of this question and what are the assumptions we have to make. We are given some information about the cleaning process in a hotel. The variabl...

Ma journée commence quand je me réveille à 7 heures du matin. Je me lève, je m'habille, je mange mon petit déjeuner et je me brosse les dents. Ensuite, ma maman m'accompagne à l'école. A l'école j'apprend...

Firstly, take a verb that you want to conjugate e.g. Comer (to eat). Take off the ending -er- leaving it as 'com' (do the same for -ar- and -ir- verbs) then add an ending using the imperfect tense verb en...

total number of balls = 3+4+2=9number of blue balls = 3probability of picking a blue ball = total number of blue balls/total number of ballstherefore = 3/9=1/3

First label the equations. 1: 5x + 2y = 4 . 2: x - y - 5 = 0 . Rearrange equation 2 . 2: y = x - 5 Substitute equation 2 into equation 1 . 5x + 2( x - 5 ) = 4 . 7x = 14 . x = 2 . Substitute x = 2 into equ...