Elena va de compras con 400 euros se gasta 3/5 de esa cantidad ¿ cuanto le queda?
2 answers:
Planteamos ecuación sabiendo que:
===> Elena solo tiene 400 euros.
===> gasto el 3/5 de dicha cantidad.
Podemos multiplicar los números y restar el resultado entre el número de euros en este caso 400.
Entonces podemos realizamos operaciones :
Obtenido el resultado Podemos realizar la resta:
A Elena le quedan 160 euros.
Espero que te sirva, salu2!!!!
You might be interested in
Answer:
The daily value for saturated fat is 20g.
Step-by-step explanation:
Percentage problems can be solved by rule of three
In a rule of three problem, the first step is identifying the measures and how they are related, if their relationship is direct of inverse.
When the relationship between the measures is direct, as the value of one measure increases, the value of the other measure is going to increase too. In this case, the rule of three is a cross multiplication.
When the relationship between the measures is inverse, as the value of one measure increases, the value of the other measure will decrease. In this case, the rule of three is a line multiplication.
A percentage problem is an example where the relationship between the measures is direct.
The problem states that 1g is 5% of the daily value for saturated fat. The daily value(100%) for saturated fat is x, so:
1g - 5%
xg - 100%
5x = 100
x = 20g
The daily value for saturated fat is 20g.
Answer:
(0,3)
Step-by-step explanation:
So we have the equation:
Recall what the y-intercept is. The y-intercept is when the graph crosses the y-axis. Therefore, at that point, the x-value is 0. So, to find the y-intercept, substitute 0 for x. Thus:
Subtract:
Square:
Add:
So, the y-intercept is at (0,3).
And we're done!