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.
Answer:
First, you will need to arrange the data in an ascending order and the median is the middle value.
If the number of values is an even number, the median will be the average of the two middle numbers.
2, 6, 7, 10, 11, 15, 15
The median in this set is <em><u>10</u></em>.
Step-by-step explanation:
I hope that this answer has helped you to understand your question, If you have any further questions, please put them below.
Have a great rest of your day/night!
The answer to the question is 12,400
Step-by-step explanation:
Hope it helps you in your learning process.
Answer:
225(3)
Step-by-step explanation:
Since the debt has tripled it has been multiplied by 3 so the answer is 225 x 3 or 225(3)
