Answer:
D
Step-by-step explanation:
3x+6=9
3x=3
x=1
Answer: 4 horas
Step-by-step explanation:
Una semana (de lunes a viernes) contiene 5 días
Si se entrena 1 hora por día:
1 x 5 = 5 horas (total de horas de entrenamiento de lunes a viernes)
Ese total más el número de horas que se entrena el sábado (x) dividido por 6 (numero de días en la semana incluyendo sábado) debe ser igual a el promedio de horas entrenadas en los 6 días (1.5)
(5+x) /6 =1.5
Despajando x:
5+x =1.5 x 6
5+x =9
x =9-5
x = 4 horas
C. the birthrate is higher than the death rate.
Answer:
8 years.
Step-by-step explanation:
The simple interest formula is principal × rate (as a decimal) × time = interest. In this question, you want to find the time.
First, plug in your numbers. 350 × .055 × t = 154. Then, to find t, divide to get t one side.
t = 154 / 350 × .055
Then solve.
350 × .055 is 19.25. 154 / 19.25 is 8.
So, your answer is 8 years.
154/350*.055 = t