-2 4/6 ÷ -2/3=
-16/6 * -3/2=48/12= 4
Answer:
Given formula is :
S = 
We have p = 8500
r = 12.7% or 0.127
(a) when t = 18 months or 
years
S = 
=
=
= 1.20985
S = $10283.73
(b) Investment doubles means S = 
=> 
Taking log on both sides
We get t = 5.45 years
Answer:
200 dollars
Step-by-step explanation:
Let's say p equals the cost price of the article. Since the man made 25% profit, that means he got 100% of what he originally paid plus another 25% of what he originally paid. In other words, he sold the article for 125% of the original price. Converting that to a decimal we get:
250=p*1.25
Some simple division gets us a cost price of 200 dollars.
