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elixir [45]
3 years ago
10

Exercice n°2 (3 points) Pour fabriquer du béton, une entreprise a utilisé et mélangé 4 000 L d'eau, 36 m3 de granulat (sable et

graviers) et 8 m3 de ciment. 1.
a) D'après cette méthode de fabrication, quelle est la proportion de ciment dans le béton ? Écrire les calculs effectués
b) Simplifier au maximum la fraction obtenue à la question précédente.​
Mathematics
2 answers:
Karolina [17]3 years ago
6 0

Answer:

bzbz z zbsbsbjzbzbzznsnbdbsbdvdvd

Alexandra [31]3 years ago
3 0

Answer:

b is the right answer po TaMa Po yan

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JulijaS [17]

Use the formula (n - 2) * 180 to find the sum of the interior measures of a polygon.

n stands for the number of sides that the polygon has, so substitute 10 for n since a decagon has 10 sides.

(10 - 2) * 180, start by solving inside the parentheses and subtracting 10 and 2.

(8) * 180, multiply.

B. 1,440 is your answer.

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3 years ago
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estion 6 of 20 : Select the best answer for the question. 6. Gourds at a local farm sell for $.49 per pound. Jim Ring spent $73.
shepuryov [24]
Hey there,

#1 First step.

So we will start off on doing 73.50 ÷ .49 because Jim Ring spent 73.50 and each pound would be $.49 and we need to find out how many pound did he take. So we do 73.50 ÷ .49 and that will give us 150.

Jim Ring took \boxed{150} pounds.

Your correct answer would be A.)

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4 years ago
This is measure of angle b
Stells [14]

Step-by-step explanation:

1) 180-125=55°

2) 90-67=23°

3) 180-102=78°

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5) 180-129=51°

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3 years ago
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