You can put this solution on YOUR website! You have several
questions here. Let's take one at a time. $300 is borrowed the
amount owed after 12 months is $00 what is the interest rate. We
need I = PRT for this question. P = 300, t = 12 months. Time is
measured in years, so t = 1. We don't have interest rate or
amount of interest paid back. It appears according to the
question that $300 is paid back after 12 months. Without some R
or I info. I can't solve this one. QUESTION #2: 25 is 12% of
what number? 25 = (12/100)*N cross multiply to get 2500 = 12N
divide to get N = 208.33 X + Y =130 6.50X +250Y - 604.5 Don't
know if we are solving algebraically or graphing. I will show
solve algebraically. I think you mean (i) X + Y =130 (ii) 6.50X
+2.50Y = 604.5 step 1: multiply (i) by -2.50 to get -2.5X - 2.5Y
= -325 6.50X + 2.50Y = 604.5 step 2: add down to eliminate Y. 4X
= 279.5 step 3: solve for X. X = 69.875. step 4: solve for Y. Y
= 60.125 Graph the solutions of equalities (i) 4X + 5Y < 20 (ii)
4X - 2Y < 8 Find x a