Draw a flow diagram to indicate the different phases in reproduction.
1 answer:
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Answer:
Carrie and Joan have 80 nickels and 40 dimes, respectively, and each one has an amount of money of 4 US dollars.
Step-by-step explanation:
Let be and
the amounts of nickels and dimes that Carrie and Joan have, as
the total amount of money that both Carrie and Joan have. A nickel is a five cent coin and a dime is a ten cent coin.
The following equations are constructed after a careful reading on statement:
Carrie's amount of money:
(Eq. 1)
Joan's amount of money:
(Eq. 2)
Relation between amounts of coins:
(Eq. 3)
First we eliminate by equalizing (Eq. 1) and (Eq. 2):
Then, we reduce the resulting formula by (Eq. 3):
And rest of variable are now determined:
Carrie and Joan have 80 nickels and 40 dimes, respectively, and each one has an amount of money of 4 US dollars.
The investment will be $2653.30 after 20 years.
Step-by-step explanation:
Given,
Principal(P) = $ 1000
Time (T) = 20 years
Rate of interest(R) = 5%
To find the amount after 20 years
Formula
Amount(A) = P
Now putting the values of P, T and R we get,
A = $1000
=$ 1000
=$ 2653.297
= $ 2653.30
Hence, the investment will be $2653.30 after 20 years.