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Pascalepellizz
@Pascalepellizz
April 2019
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Aider moi svp je comprend rien merci d avance ex2
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winner123
Verified answer
Bonjour
Exercice I
A = - 2/5 -18/14 x 7/6
-2/5 - 3/2 = - 4/10 - 15/10 =
- 19/10
B = 5/3 - -6/7 +5/3
35/21 + 18/21 + 35/21 =
88/21
C = -3/4 : -1+2/3
-3/4 : -3/3 +2/3
-3/4 : -1/3 = -3/4 x 3 =
-9/4
D = (5/3 -2) : (7/6 -2/3) =( 5/3 - 6/3 ) : (7/6 - 4/6)
-1/3 : 3/6 = -1/3 x 6/3 = -6/9 =
- 2/3
Exercice II
1° Avec -3
-3
-3+3 = 0
0 x 2 = 0
0 +5 =
5
2
2+3 = 5
5 x -2 = -10
-10+5 =
-5
-2/3
-2/3 +3 = -2/3 + 9/3 = 7/3
7/3 x -2 = -14/3
-14/3 +5 = -14/3 + 15/3 =
1/3
x
x +3
2x +6
2x +6 +5 =
2x +11
2x +11 = -1
2x = -1 -11
2x = -12
x = -6
on doit prendre - 6 comme chiffre de départ pour obtenir -1
2x +11 = 0
2x = -11
x = - 5.5
Exercice III
AB = 3 + 2x
AD = 2 +2x
Périmètre = 2(3 +2x +2 +2x)
= 6 + 4x +4 +4x = 8x +10
8x +10 = 14
8x = 14 -10
8x = 4
x = 4/8 ou
1/2
Exercice IV
je ne comprends pas si la 1ere case est un multiplié ou la lettre x
le 5, on ne voit pas la fin de l'exercice
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pascalepellizz
June 2021 | 0 Respostas
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Pascalepellizz
April 2019 | 0 Respostas
J ai besoin d aide pour le 5 et le 6 aider moi svp merci :)
Responda
Pascalepellizz
April 2019 | 0 Respostas
Aider mon pour le 4 svp je ne comprend pas merci d avance:)
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Pascalepellizz
April 2019 | 0 Respostas
Vous pouvez m aider je suis mauvais en math il n y a que 1 seul exercice
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Pascalepellizz
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Verified answer
BonjourExercice I
A = - 2/5 -18/14 x 7/6
-2/5 - 3/2 = - 4/10 - 15/10 = - 19/10
B = 5/3 - -6/7 +5/3
35/21 + 18/21 + 35/21 = 88/21
C = -3/4 : -1+2/3
-3/4 : -3/3 +2/3
-3/4 : -1/3 = -3/4 x 3 = -9/4
D = (5/3 -2) : (7/6 -2/3) =( 5/3 - 6/3 ) : (7/6 - 4/6)
-1/3 : 3/6 = -1/3 x 6/3 = -6/9 = - 2/3
Exercice II
1° Avec -3
-3
-3+3 = 0
0 x 2 = 0
0 +5 = 5
2
2+3 = 5
5 x -2 = -10
-10+5 = -5
-2/3
-2/3 +3 = -2/3 + 9/3 = 7/3
7/3 x -2 = -14/3
-14/3 +5 = -14/3 + 15/3 = 1/3
x
x +3
2x +6
2x +6 +5 = 2x +11
2x +11 = -1
2x = -1 -11
2x = -12
x = -6
on doit prendre - 6 comme chiffre de départ pour obtenir -1
2x +11 = 0
2x = -11
x = - 5.5
Exercice III
AB = 3 + 2x
AD = 2 +2x
Périmètre = 2(3 +2x +2 +2x)
= 6 + 4x +4 +4x = 8x +10
8x +10 = 14
8x = 14 -10
8x = 4
x = 4/8 ou 1/2
Exercice IV
je ne comprends pas si la 1ere case est un multiplié ou la lettre x
le 5, on ne voit pas la fin de l'exercice