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Montano1993 [528]
3 years ago
5

The amount of simple interest earned, n, varies jointly with the rate of interest, r, and the number of years, t. The simple int

erest earned is $225 when the rate of interest is 4.5% for 4 years. Using the variables r, and t, find the equation that represents this relationship.
Mathematics
1 answer:
andre [41]3 years ago
8 0

Answer:

The equation is

n = PRT/100

The value of p

p = $1250

Step-by-step explanation:

Simple interest= n

Rate of interest = r

Number of years = t

Then principal amount= p

This p can be said to be the constant of the equation because it's value never changes

n = $225

r = 4.5%

t = 4 years

The interest varies jointly with the rate, the time and the principal amount.

The equation for the relationship

n > prt

But r is in percentage

n = PRT/100

For the value of p

p =(225*100)/(4.5 *4)

p= 22500/18

p= 1250

p = $1250

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