Answer:
<h2>18.750kg</h2>
Step-by-step explanation:
If a mass of 2.5 grams costs a penny, we want to know the amount of mass that will cost $75. Before we get the mass, we need to convert 75 dollars to penny. Using the conversion:
$1 = 100pennies
$75 = (75*100)pennies
$75 = 7,500 pennies
Using the law of equivalence
1 penny = 2.5 grams
7,500pennies = x grams
Cross multiply
1 * x = 2.5 * 7500
x = 18,750 grams
Hence 18,759 grams will cost $75
Converting grams to kilograms
If 1000 grams = 1kg
18,750grams -= y
cross multiply
1000*y = 18750
Divide both sides by 1000
1000y = 18750/1000
y = 18.750kg
<em>Hence the amount in kilogram of $75 coin in pennies is 18.750kg</em>
Answer:
I think it's s
Step-by-step explanation:
I think it's set equation.
Answer:
When x=4 we get the value of the given expression is
Step-by-step explanation:
Given rational expression is 
To find the value of the given rational expression
when x is equal to 4 :
That is the value of the given rational expression
when x=4 :
Put x=4 in the above rational expression we get
Therefore when x=4 we get the value of the given expression is
Trabajando 10 horas por día, en 6 días se producen 3000 ruedas.
<h3>
¿Cuántos dias tardarán en fabricar 3000 ruedas si trabajan 10 horas diarias?</h3>
Sabemos que trabajando 8 horas, en 5 dias producen 2000 ruedas.
El número total de horas que trabajan en esos 5 dias es:
(8 horas)*5 = 40 horas
Entonces se producen 2000 ruedas en 40 horas, es decir, la razon de trabajo es:
(2000 ruedas)/(40 horas) = 50 ruedas por hora.
Ahora, sí en la fabrica trabajan 10 horas al día, entonces van a producir:
10h*(50 ruedas por hora) = 500 ruedas por día.
El número x de días que deben trabajar para producir 3000 ruedas es:
x*(500 ruedas por dia) = 3000 ruedas
x = (3000 ruedas)/(500 ruedas por dia) = 6 dias.
Trabajando 10 horas por día, en 6 días se producen 3000 ruedas.
Sí queres aprender más sobre razones de trabajo:
brainly.com/question/8728504
#SPJ1
Answer:
There is a 90% decrease
Step-by-step explanation:
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