1) what is the sum of two complementary angles ?
2) find the simple intrerest on $500 for 3 years at a rate per annum ?
3) which of the numbers have 5 as a factor?
thanks heaps
2007-05-29 22:42:38 · 4 answers · asked by jess y 4 in Science & Mathematics ➔ Mathematics
1) A pair of angles are complementary if the sum of their measures add up to 90 degrees. Thus the sum of two complementary angles is 90 degrees.
2) Let us assume a rate of 10% per annum (it is not given in your question). So for 1 year, the interest will be 50 dollars and for 3 years it will be 150 dollars. The formula is
I = P X r X N/100 where I is the interest, P, the principal amount, r the percentage rate, N the number of years.
3) 5, 10, 15 20, 25... all have 5 as a factor. To know them simply multiply 5 by 1, 2, 3, 4, ....
2007-05-29 22:51:56 · answer #1 · answered by Swamy 7 · 0⤊ 0⤋
1. Sum of two complementary angles is 90 degrees
2. Interest = $500*R*3/100 where R is the Rate of interest in %.
3. All the multiples of 5 will have 5 as factor. All numbers ending with 5 0r 0 will have 5 as factor.
2007-05-30 05:52:23 · answer #2 · answered by Jain 4 · 0⤊ 0⤋
1)Complementary angles sum to 90degrees
Supplementary sums to 180degrees
2)I = PRT
There isn't enough information for 2)
2007-05-30 06:02:20 · answer #3 · answered by Kuan T 2 · 0⤊ 0⤋
1.) 90
2.) no rate given
3.) no nos. given
2007-05-30 05:47:31 · answer #4 · answered by blitzmonster 2 · 0⤊ 1⤋