Answer:
I need to know the radius or diameter.
Step-by-step explanation:
Step-by-step explanation:
A) In order to calculate the interest , we can use the following formula :

Where P is the interest , P0 is the initial value, i is the interest and t is the time.
So , using P0 =600,i= 0.0005768 and t=27 ,we have :

Calculating only the interest, we have :

So the interest is $9.41.
B) He paid the final value calculated above, that is , $609.41.
PLEASE MARK ME AS BRAINLIEST
Answer:
$1200
Step-by-step explanation:
Given data
Principal=$4000
Rate=1.5%
Time= 20years
The expression for simple interest is
SI= PRT/100
Substitute
SI= 4000*1.5*20/100
SI=120000/100
SI=$1200
Hence the interest is $1200
.06x+0.08 (1500-x)=106.4
Solve for x
0.06+120-0.08x=106.4
0.06x-0.08x=106.4-120
-0.02x=-13.6
X=13.6÷0.02
X=680 invested at 6%