Answer:
x=4.5
Step-by-step explanation:
A(t) = 500(1.0325)^t
500 is the initial deposit, t=0, A(0)=500
3.25% is the interest rate
t is in years
Let's go through the choices.
After 1 year ... A(1)=500. Don't check; it's A(0) that equals 500, A(1) is bigger.
The rate is 1.03%. Don't check; the base being exponentiated is 1 plus the rate.
Rate is 3.25%. TRUE that's why we have 1 + 0.0325 as the base.
Rate is 5%. Don't check.
Only one right answer.
Answer:
-5
Step-by-step explanation:
ab = dc
x+15= 3x+25
2x = -10
x = -5
substituting in ad and bc
-10+18 = 8
3-(-5)=3+5=8
