Answer:9 nickels and 19 dimes.
Step-by-step explanation:
Let 
be the number of nickels Kay has.
Let 
be the number of dimes Kay has.
Value of 
nickel is $
Value of nickels is $
Value of dime is $
Value of nickels is $
Given that Kay has a total of 
coins.
So,
...(i)
Given that Kay has a total value of $
So,
...(ii)
Using (i) and (ii),
It is 15100. First 0 is no important.
In this case were going to solve the question using "simple interst", so since were looking for the interest it will be I= PxRxT (I stands for "interest", P stands for "principal", R stands for "rate" and T stands for "time")
so P is $3000
R is 2%
and T is 3 years
so we'll have to turn our rate into a decimal which is 2% = .02
now to start the problem:
I= (3000)(.02)(3) (means 3000 x .02 x 3)
I= $180 is your answer
Answer:
10
Step-by-step explanation:
