Answer:
simple interest is $6.8
Miguel pay amount to Julio at the end of 6 months $206.8
Step-by-step explanation:
Given : Miguel Rodriguez borrowed $200 from his brother Julio to pay for books and tuition. He agreed to pay Julio in 6 months with simple annual interest at 6.8%.
To Find : a) How much will the interest amount to?
b) What amount must Miguel pay Julio at the end of 6 months?
Solution :
Formula for simple interest :

Where rate is in decimal
Time is in years
So, rate of interest = 6.8 % = 0.068
Time = 6 months = 
Principal = $200
Thus 

Now To calculate amount must Miguel pay Julio at the end of 6 months
Amount = principal +Simple interest
Amount = 200+6.8 =206.8
Hence the simple interest is $6.8
And Miguel pay amount to Julio at the end of 6 months $206.8
Answer:
5b(2 - 5b²)
Step-by-step explanation:
Simply take out GCFs to factor out the expression:
Step 1: Factor out GCF of 5
5(2b - 5b³)
Step 2: Factor out GCF of <em>b</em>
5b(2 - 5b²)
We can't factor the quadratic any further so that is our final answer.
Answer:
double 75 to get 30%..........
Answer:
b) 
Step-by-step explanation:
Para ampliar la habitación cuadrada, se agregaron 4 metros de largo y 2 metros de ancho, como se muestra en la figura.
Deje que la longitud y el ancho de la habitación antes de la expansión sean x.
La nueva longitud de la sala es (x + 4).
El nuevo ancho de la sala es (x + 2).
La nueva área de la sala será:

Esa es la nueva área de la habitación.