If the principal is a (¥), the annual interest rate is
r
(%),
and the number of years of interest accumulation is
x
(years),
the final amount
y
(¥) is given by the following equation:
(1) Find the final amount when a principal of ¥400,000 is
deposited for three years at an annual interest rate of 5%
and the interest is compounded annually.
(2) When a principal of ¥300,000 is deposited for five years
and the interest is compounded annually, the final amount is
¥339,422. The annual interest rate
r
is given by the equation below.
Find the annual interest rate
r
.
(1)
(2)
x
r
= 100
- 1
( )
y
a
5
- 1
339422
300000
y
= 400000 1 +
( )
5
100
3
r
= 100
( )
5
100
300000
y
=
a
( 1 +
r
/ 100 )
x
400000
1
3
100
5
339422
1
Operation
Display
<Example 2>
Power and Radical root
15
Summary of Contents for WriteView EL-W531X
Page 1: ...SCIENTIFIC CALCULATOR OPERATION GUIDE SCIENTIFIC CALCULATOR OPERATION GUIDE Write View ...
Page 38: ...37 Example Operation Absolute Value Returns an absolute value Display 3 4 ...
Page 54: ...53 3 100 10 20 3000 0 x x dx Integration calculation x dx ...
Page 70: ...69 a b r ...
Page 75: ... SHARP CORP SEP 13 ...
