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erma4kov [3.2K]
3 years ago
12

Which expression is the correct one?

Mathematics
1 answer:
Zarrin [17]3 years ago
3 0
According to the logarithmic property of base change, the correpta answer is option one or the first.
 The logarithmic property of base change says that
 loga (b) = logc (b) / logc (a)
 Therefore the same property applies to this problem and the correct expression for this question is:
 logb (x) / logb (a)
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Si una galleta de chocolate aporta un aproximado de 150 kcal y un viaje en bicicleta se quema por media hora se que mas 340 kcal
Elanso [62]

Answer:

Una persona necesitará 2 horas y 30 minutos de viaje en bicicleta para quemar el contenido kilocalórico de cinco galletas.

Step-by-step explanation:

De acuerdo con este problema, la cantidad de calorías que se quema es directamente proporcional al tiempo de viaje en bicicleta. Si sabemos que una galleta aporta 150 kilocalorías, entonces 5 galletas equivalen a 750 kilocalorías.

Por regla de tres simple calculamos el tiempo requerido para quemar 750 kilocalorías:

x = 30\,min \times \frac{750\,kcal}{150\,kcal}

x = 150\,min

Es decir, una persona necesitará 2 horas y 30 minutos de viaje en bicicleta para quemar el contenido kilocalórico de cinco galletas.

6 0
3 years ago
WHAT IS THE ANSWER PLZ I WILL MARK BRAINLIEST!!!
yKpoI14uk [10]

Answer:

There is something already at the positive 2 place and you are just subtracting 2 because of (-2)

I hope that helps :)

Step-by-step explanation:

plz mark B R A I N L I E S T

6 0
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Under her cell phone plan, Lily pays a flat cost of $55.50 per month and $4 per gigabyte. She
nlexa [21]

Answer:

Hi,can you please answer mine too it's question 9-12 I really need the answer because I have to pass it tomorrow morning:(

Step-by-step explanation:

about your question I'll put it in the comment section:)

4 0
3 years ago
Three times the sum of four and a number is twice the number.
Anon25 [30]

Answer:

24

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Jalil and Victoria are each asked to solve the equation ax – c = bx + d for x. Jalil says it is not possible to isolate x becaus
Iteru [2.4K]
<span>solve the equation ax – c = bx + d for x:

1) Group the x terms together on the left:     ax - bx - c = d

2) Group the constant terms together:          ax - bx = c + d

3) factor out x:                                             x(a - b) = c + d

4) Divide both sides of the equation by (a - b) to obtain a formula for x:
                                                       c+d
</span>           x(a - b) = c + d   =>    x = ---------
                                                       a-b

This shows that the given equation CAN be solved for x, but there is a restriction:  a must NOT equal b, because if a-b = 0, we'd have division by zero (which is not defined).

Where is Victoria's solution?  Please share it if you want to discuss this problem further.  Thank you.

8 0
3 years ago
Read 2 more answers
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