Answer:
i justr f arted really loud LOL
Step-by-step explanation:
Answer:
The equation which shows how the relationship between the circumference and the diameter of this circle is equivalent to π is π =
⇒ answer C
Step-by-step explanation:
In any circle there is a constant ratio between the circumference of the circle and its diameter
This constant ratio is called π
∵ The formula of the circumference of a circle is C = π d,
where d is the diameter of the circle
- Divide both sides by d
∴
= π
- Switch the two sides
∴ π =
∵ The diameter of the circle is 5 centimeters
∴ π = 
The equation which shows how the relationship between the circumference and the diameter of this circle is equivalent to π is π = 
Answer:
15. 12
Step-by-step explanation:
just multiply them
Answer:
8 ejercicios
Step-by-step explanation:
De acuerdo a la información dada, puedes plantear las siguientes ecuaciones:
x+y= 45 (1)
7x-1y= 19 (2)
x= ejercicios que resolvió bien
y= ejercicios que resolvió mal
Primero, puedes despejar x en (1):
x= 45-y (3)
Segundo, debes reemplazar (3) en (2):
7(45-y)-1y=19
315-7y-1y= 19
315-8y= 19
315-19= 8y
296= 8y
y= 296/8
y= 37
Tercero, debes reemplazar el valor de y en (3) para encontrar x:
x= 45-37
x= 8
De acuerdo a esto, la respuesta es que el hijo ha resuelto bien 8 ejercicios.