Sagot :
Answer:
PROBLEM:
when natasha invested at an annual interest rate of 9%,she earned an amount of P7,200 of simple interest in 5 years.How much money did she originally invested?
SOLUTION:
Given: r=9%=0.09 Find P: P=Is/rt
t=5 years P=7200/(0.09)(5)
Is=7,200 P=16,000
ANSWER: the amount she invested originally is 16,000