If 14 meters of ribbon cost $19, how much would 21 meters of ribbon cost?
2 answers:
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Answer:
= 9
Step-by-step explanation:
We need to find which will make an equivalent fraction statement.
5 x 6 = 30
x 6 = 54 (to find
we should do 54 ÷ 6 which = 9)
So:
= 9
hope this helps :)
Answer:
10.153 years
Step-by-step explanation:
The future value of such an investment is given by ...
FV = P·(1 +r/12)^(12t)
where P is the principal invested, FV is the future value of it, r is the annual interest rate, and t is the number of years.
Dividing by P and taking the log, we have ...
FV/P = (1 +r/12)^(12t)
log(FV/P) = 12t·log(1 +r/12)
Dividing by the coefficient of t gives ...
t = log(FV/P)/log(1 +r/12)/12 = log(3000/2000)/log(1 +.003333...)/12 ≈ 121.842/12
t ≈ 10.153 . . . years
