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{"id":144,"date":"2020-11-11T20:40:56","date_gmt":"2020-11-11T20:40:56","guid":{"rendered":"http:\/\/ms.iaca.fr\/?p=144"},"modified":"2020-11-11T21:30:35","modified_gmt":"2020-11-11T21:30:35","slug":"tableau-et-situation-proportionnalite","status":"publish","type":"post","link":"http:\/\/ms.iaca.fr\/tableau-et-situation-proportionnalite","title":{"rendered":"Tableau et situation proportionnalit\u00e9"},"content":{"rendered":"\n

Timoth\u00e9e, 6 mois, a renvers\u00e9 son biberon alors qu\u2019il a d\u00e9j\u00e0 bu 150 mL ! Comment reconstituer son biberon afin qu\u2019il ait la bonne quantit\u00e9 pr\u00e9conis\u00e9e pour son \u00e2ge ?
Voici un tableau r\u00e9capitulatif des quantit\u00e9s n\u00e9cessaires pour r\u00e9aliser un biberon pour un nourrisson.
<\/p>\n\n\n\n

Age (mois)<\/td>Quantit\u00e9 d\u2019eau (mL)<\/td>Mesurettes de lait<\/td>Mesurettes de c\u00e9r\u00e9ales<\/td>Mesurettes de soupe<\/td><\/tr>
1<\/td>90<\/td>3<\/td> <\/td> <\/td><\/tr>
2<\/td>120<\/td>4<\/td> <\/td> <\/td><\/tr>
3<\/td>150<\/td>5<\/td> <\/td> <\/td><\/tr>
4<\/td>180<\/td>6<\/td> <\/td> <\/td><\/tr>
5<\/td>180<\/td>6<\/td> <\/td> <\/td><\/tr>
6<\/td>210<\/td>7<\/td> <\/td> <\/td><\/tr>
7<\/td>210<\/td>7<\/td>3<\/td> <\/td><\/tr>
8<\/td>210<\/td>7<\/td>3<\/td> <\/td><\/tr>
9<\/td>210<\/td>7<\/td>3<\/td> <\/td><\/tr>
10<\/td>240<\/td>8<\/td>4<\/td>5<\/td><\/tr>
12 et plus<\/td>270<\/td>9<\/td>5<\/td>6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Repr\u00e9senter en bleu sur ce rep\u00e8re le nombre de mesurettes de lait en fonction de la quantit\u00e9 d\u2019eau.

\"\"<\/a>
voir le graphique<\/a><\/p>\n\n\n\n

\"\"
voir graphique<\/a><\/p>\n\n\n\n

Sur ce m\u00eame rep\u00e8re, repr\u00e9sente<\/strong> en rouge l\u2019\u00e2ge du b\u00e9b\u00e9 en fonction de la quantit\u00e9 d\u2019eau.<\/p>\n\n\n\n

Quelle droite est une situation de proportionnalit\u00e9<\/strong> ? Donner<\/strong> le coefficient multiplicateur.<\/p>\n\n\n\n

La droite bleue car c\u2019est une droite qui passe par l\u2019origine. Le coefficient multiplicateur est 1\u00f730                             <\/p>\n\n\n\n

En d\u00e9duire graphiquement la r\u00e9ponse \u00e0 la probl\u00e9matique.<\/p>\n\n\n\n

Il faut 210mL, il en manque 210-150 = 60mL
60mL correspond \u00e0 2 mesurettes de lait. Il faut faire 60mL d\u2019eau avec 2 mesurettes de lait         <\/p>\n\n\n\n

Trouve l\u2019\u00e9quation qui permet de connaitre le nombre de mesurettes en fonction de la quantit\u00e9 d\u2019eau.<\/p>\n\n\n\n

30mL d\u2019eau correspond \u00e0 une mesurette. C\u2019est une situation de proportionnalit\u00e9
Nombre de mesurettes = quantit\u00e9 d\u2019eau \u00f7 30    <\/p>\n","protected":false},"excerpt":{"rendered":"

Timoth\u00e9e, 6 mois, a renvers\u00e9 son biberon alors qu\u2019il a d\u00e9j\u00e0 bu 150 mL ! Comment reconstituer son biberon afin qu\u2019il ait la bonne quantit\u00e9 pr\u00e9conis\u00e9e pour son \u00e2ge ?Voici un tableau r\u00e9capitulatif des quantit\u00e9s n\u00e9cessaires pour r\u00e9aliser un biberon pour un nourrisson. Age (mois) Quantit\u00e9 d\u2019eau (mL) Mesurettes de lait Mesurettes de c\u00e9r\u00e9ales Mesurettes … <\/p>\n