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How can you compare simple and compound interest?
Simple interest is calculated one time @ a specified rate over a specific length of time. Compound interest is calculated multiple times @ a specified rated divided by the number of given periods within a specified time. example: $100 @ 10% interest over 1 year. Simple interest: principle x rate x time = interest; $100 x .10 x 1 = $10 example: $100 @ 10% interest compounded quarterly over 1 year. Compound interest: principle x {(1 + rate / #periods)n} = interest $100 x {(1 + .10 / 4 )^4} = $100 x (1 .025 )^4 = $100 x 1.1038 = $10.38
What are the basic metric units of length mass time and volume?
Length . . . meter Mass . . . kilogram Time . . . second Volume . . . cubic meter
What quantity do you think a meter stick measures?
Time
How many molecules are in one cubic meter of air?
That depends on the pressure and temperature of the air in the cubic meter. Any time you change the pressure or the temperature of a gas, you change the number of molecules in one cubic meter of it.
How long does it take a principal of RM 25000 at a simple interest rate of 5 percent to become RM 30000?
4 time periods (eg 4 years if the 5% simple interest were added each year). In simple interest, the interest is added, but attracts no interest itself (that is compound interest) - only the original value attracts the interest: 5% of RM 25000 = RM 1250 added each time RM 30000 - RM 25000 = RM 5000 RM 5000 ÷ RM 1250 = 4 time periods
