We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
-5
195
1
avatar+49 

For each problem below, solve algebraically. Then, use a table or graph to check your answer.

 Apr 8, 2019
 #1
avatar+105238 
+2

2500 = 1000 (1 + .028/12)^(12t)     divide both sides by 1000

 

2500/1000 = (1 + .028/12)^(12t) 

 

2.5  =  (1 + .028/12)^(12t)     take the og of both sides

 

log (2.5)= log (1 + .028/12)^(12t)     and we can write

 

log(2.5) = (12t) log ( 1 + .028/12)       divide both sides by 12 log (1 + .028/12)

 

log (2.5) / [ 12 log (1 + .028/12] = t ≈  32. 8 years   

 

Here's the graph :  https://www.desmos.com/calculator/iihh2mezsg

 

 

cool cool cool

 Apr 8, 2019

2 Online Users