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leonid [27]
2 years ago
7

15. ¿Cuál es ol rosultado de 2x(x - 1)?

Mathematics
2 answers:
castortr0y [4]2 years ago
6 0
What is this in english??
professor190 [17]2 years ago
5 0
<h2>¡Hola! </h2>

<h2>Explicación paso a paso Espero que te ayude</h2>

2x(x - 1) \\  \\  {2x}^{2}  - 2x

<h2>Espero que te ayude </h2>
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An experienced carpenter can frame a house twice as fast as an apprentice. Working together, it takes the carpenters 2 days. How
AleksAgata [21]

Answer:

<em>6 days</em>

<em></em>

Step-by-step explanation:

Let the time taken by Carpenter working alone = C days

Then time taken by apprentice alone = Twice as that of taken by Carpenter = 2C days

Time taken working together = 2 days

Work done in one day working together = \frac{1}{2}

Work done in one day by Carpenter working alone = \frac{1}{C}

Work done in one day by apprentice working alone = \frac{1}{2C}

Work done in one day by Carpenter working alone + Work done in one day by Carpenter working alone =  \frac{1}{C}+\frac{1}{2C} = Work done in one day working together = \frac{1}{2}

\dfrac{1}{C}+\dfrac{1}{2C}=\dfrac{1}{2}\\\Rightarrow \dfrac{2+1}{2C}=\dfrac{1}{2}\\\Rightarrow C = 3\ days

Time taken by Carpenter alone to complete the work = 3 days

Time taken by Apprentice alone to complete the work = 3 \times 2= <em>6 days</em>

4 0
3 years ago
A calculator may be used for this question. The energy saving from recycling one glass bottle will power the oven Adam uses to c
anastassius [24]
6 hours=360 minutes
Glass bottles needed to cook for 6 hours=360/7.5
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Weight of 48 glass bottles=48x500g
                                      =24000g
                                      =24kg
Price of 24kg of glass=5px24
<span>                               =120p</span>
7 0
3 years ago
Como calcular el 15% de 300
ArbitrLikvidat [17]
300 x .15 y te dará la respuesta
4 0
2 years ago
Which property is illustrated by the following statement?
kirza4 [7]

Associative property of addition


8 0
3 years ago
The topic is volume &amp; surface area, can someone help?
marishachu [46]
This pic should help

3 0
3 years ago
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