Match the information about interest earned with the principal amount invested. Remember the equation for calculating simple interest is I equals p times r times t.

Match Term Definition
eighty−one dollars over 3 years at an interest rate of three percent A) p equals one thousand one hundred dollars
eighty dollars over 2 years at an interest rate of five percent B) p equals eight hundred dollars
ninety−six dollars over 2 years at an interest rate of four percent C) p equals nine hundred dollars
ninety−nine dollars over 3 years at an interest rate of three percent D) p equals one tho

Question

Match the information about interest earned with the principal amount invested. Remember the equation for calculating simple interest is I equals p times r times t.

Match	Term	Definition
	eighty−one dollars over 3 years at an interest rate of three percent	A) p equals one thousand one hundred dollars
	eighty dollars over 2 years at an interest rate of five percent	B) p equals eight hundred dollars
	ninety−six dollars over 2 years at an interest rate of four percent	C) p equals nine hundred dollars
	ninety−nine dollars over 3 years at an interest rate of three percent	D) p equals one tho

anonymous · Answer

can i just get the answere

texaschic101 · Answer

I = PRT

In these problems, you are looking for P....so lets change the formula to :
P = I/RT
===============
I = 81
T = 3
R = 3% = 0.03 (always change rate to decimal by dividing by 100)
now sub
P = 81/(0.03)(3)
P = 81 / .09
P = 900 -- answer C

....thats how you would do them

rest of them...
P = I/RT
P = 80/(0.05)(2)
P = 80/0.1
P = 800
=======
P = I/RT
P = 96 / (.04)(2)
P = 96 / 0.08
P = 1200
======
P = I/RT
P = 99/(.03)(3)
P = 99 / .09
P = 1100