a sister borrowed $3,400 from her brother for 189 days. he charged her 1.5% interest. true or false: the…

a sister borrowed $3,400 from her brother for 189 days. he charged her 1.5% interest. true or false: the sister had to pay her brother back $29.80 in interest. true false

a sister borrowed $3,400 from her brother for 189 days. he charged her 1.5% interest. true or false: the sister had to pay her brother back $29.80 in interest. true false

Answer

Explanation:

Step1: Calculate the interest

The simple - interest formula is (I = Prt), where (P) is the principal amount, (r) is the annual interest rate (in decimal form), and (t) is the time in years.

Given (P=$3400), (r = 1.5%=0.015), and (t=\frac{189}{365}) (assuming a non - leap year with 365 days).

Substitute the values into the formula: (I=3400\times0.015\times\frac{189}{365})

First, calculate (3400\times0.015 = 51)

Then, (I = 51\times\frac{189}{365})

(I=\frac{51\times189}{365}=\frac{9639}{365}\approx26.41)

Answer:

False