First if each stack has 10 cds and there is 5 stacks you do 10 X 5= 50. then you add two more stacks of 10 ( 2 stacks of 10=20) and add 20 to 50 which is 70
Answer:
I think it's the associative property of multiplication
Step-by-step explanation:
Answer:
The appropriate interest rate would be 10%.
Step-by-step explanation:
Without further info I must assume that you want "simple interest" on the $25000 principal. The appropriate formula for simple interest is:
i = p*r*t, where p is the principal amount, r is the interest rate as a decimal fraction, and t is the time in years.
i
We want the rate, r, so we solve this equation for r: r = -------------
p*t
Now we're in a position to substitute the known values of i, p and t and to calculate r from them:
$5000 1
r = ---------- ------------- = --------------- = 0.10
($25000)(2 yrs) 10
The appropriate interest rate would be 10%.
