Yes because removing the common factor is important. There are a few steps, then you can factor by regrouping. Hope this helps.
Answer: 4 1/4
Step-by-step explanation: 85 divided by 20 is 4.25
Answer:
16 years approx
Step-by-step explanation:
Given data
P=$3000
r= 6%
A= $7700
t= ??
The compound interest formula is
A= P(1+r)^t
Calculate time, solve for t
t = ln(A/P) / r
substitute
t= ln(7700/3000)/0.06
t= ln(2.566)/0.06
t= 0.942/0.06
t= 15.7
The time is 16 years approx
Answer:
r=11
Step-by-step explanation:
10r - 20 = 5r + 35
-5r. -5r
---------------------------
5r - 20 = 35
+20 = +20
---------------------------
5r = 55
------------
5r. 5
r=11