Answer:
The answer is B, I just took the test.
Step-by-step explanation:
Answer:
Final answer is c. 15
Step-by-step explanation:
We need to find about what is the first term in the sequence for which d = -2 and a7 = 3
We will use nth term formula of arithmetic sequence.

we have been given a7 that means 7th term is 3
so plug n=7, d=-2 and a_n=3 into above formula




Hence final answer is c. 15
The formula for exponential decay is

where a is the initial value (28750)
r is the rate of decrease (0.12)
x is the time, in this case in years (6 . 2018-2012 = 6 years)

<span>y </span>≈ <span>13351.62</span>
Answer:
28BS
Step-by-step explanation:
Compré 30 libros a 40 bs cada uno;
Precio de costo = 30 × 40BS
= 1200 BS
Vendí unos pocos a 360 Bs, a 36 Bs cada uno.
Número de libros vendidos = 360 BS / 36 BS
= 10 libros
Número de libros restantes = 40 BS - 10 BS
= 30 BS
¿Cuánto debo vender cada uno de los libros restantes para no perder ni ganar nada?
Para no ganar ni perder nada, la cantidad total que queda para vender los libros =
1200BS - 360 BS = 840 BS
La cantidad para vender cada uno de los libros restantes sin ganar ni perder nada se calcula como:
840BS / Número de libros restantes
= 840BS / 30BS
= 28BS