Answer:
83,461.65
Step-by-step explanation:
Pe^rt
P= principal balance
r= rate
t= time
plug in the numbers
65,000e^(.05x5)
=83,461.65
Complete Question
En una piscina con forma rectangular mide 10 metros de largo y 4 metros de
ancho y se sabe que para llenar la piscina se necesitan 100 000 litros de agua.
a) ¿Cuál es el volumen de la piscina?
b) ¿Cuál es la profundidad de la piscina?
Answer:
a) ¿Cuál es el volumen de la piscina?
= 100 m³
b) ¿Cuál es la profundidad de la piscina?
= 2.5m
Step-by-step explanation:
a) Se nos da la cantidad de litros de agua necesarios para llenar la piscina = 100000 litros
Conversión a cm³
1 litro = 0.001 m³
100000 litros = x
x = 100000 × 0.001 m³
x = 100 m³
b) La profundidad de la piscina se calcula como:
Volumen de la piscina ÷ (Largo × Alto)
Longitud = 10 m
Altura = 4 m
Por eso,
100 m³ ÷ (10 m × 4 m)
100 m³ ÷ 40 m²
= 2.5 m
Answer:
The difference in the means of the two groups is significant based on the line plot.
Step-by-step explanation:
Given that n1 = 25 and n2 =25 which are the students who started computer programming in elementary and middle school respectively.
Let x bar represent average for elementary and y bar for middle school.
H0: x bar = y bar
Ha: x bar not equals y bar
(Two tailed test)
The line plot gives the differences of sample size 10
Let d = difference = |x bar-y bar|
Then
Total
d 1 2 3 4
Freq 1 2 4 3 10
d*f 1 4 12 12 29
d^2 *f 1 8 36 48 93
Mean d 2.9
Var d 0.89
Std dev d 0.943398113
Std error d 0.314466038
Test statistic 9.221981556
df 9
p <0.0001
Since p < 0.05, at 95% level we conclude that there is a significant difference between the two means.
The line plot shows the differences
Answer:
The original selling price is $517.46
Step-by-step explanation:
Let the initial selling price be $q
After marking down 10%,
Final Selling price = Selling price(1-10%)
Selling price = q – 10% of q = q – 0.1q = 0.9q
After marking 30%
Final Selling price = Selling price(1-10%)
Selling price = 0.9q – (0.3*0.9q) = 0.9q – 0.27q = 0.63q
Therefore,
0.63q = 326
Therefore, the original selling price is $517.46