18-06-2016
Mathematics

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How to do this question 10 a b c d e

How to do this question 10 a b c d e class=

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18-06-2016

Hello,

As i am living near the Gers (canards du Gers), i reply.

a)
x: number of packets of ducks
3x: number of packets of chickens
x/2 : number of packets of beef

b)the costs:
x*7.5 (ducks)
3x*3.8 (chickens)
x/2*12.8 (beef)

c) and d
x*7.5+3x*3.8+x/2 * 12.8=607.2
==>25.3x=607.2
==>x=24

e)
24*7.5=180 ($) price of the ducks.

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