Question 9 of 25 At the beginning of year 1, Carlos invests $600 at an annual compound
interest rate of 4%. He makes no deposits to or withdrawals from the
account.
Which explicit formula can be used to find the account's balance at the
beginning of year 5? What is the balance?
A. A(n) = 600 + (0.04.600)(n-1); $684.52
Ο Ο Ο Ο
B. A(n) = 600 • (1 + 0.04)(n − 1); $701.92
O C. A(n) = 600 + (n - 1)(0.04.600); $696.00
O D. A(n) = 600. (1 + 0.04)"; $729.99
SUBMIT

7

step-by-step explanation:

answer: the answer is fre sha voca do

step-by-step explanation:

delaney would like to make a 5lb nut mixture that is 60% peanuts and 40% almonds.

she has several pounds of peanuts and several pounds of a mixture that is 20% peanuts and 80% almonds.

let 'p' represent the number of pounds of peanuts needed to make the new mixture, and  

let 'm' represent the number of pounds of the 80% almond-20% peanut mixture.

:

p + m = 5

therefore

m = (5-p)

write an equation based on the percent of peanuts

1p + .2m = .6(5)

replace m with (5-p)

p + .2(5-p) = .6(5)

p + 1 - .2p = 3

p - .2p = 3 - 1

.8p = 2

p = 2/.8

p = 2.5 lbs of peanuts required

then

5 - 2.5 = 2.5 lbs of the peanut/almond mixture required

:

a) what is the system that models this situation?

p + m = 5

1p + .2m = .6(5)