A deposite of 800 was made into a savings account and has grown to 1000 in 3 years the growth in value was via simple interest calculate on the basis of the initial deposite calculate the rate of interest

the interest rate is 8.3%

Step-by-step explanation:

The formula for determining simple interest is expressed as

I = PRT/100

Where

I represents interest paid on the amount of money deposited.

P represents the principal or amount of money deposited.

R represents interest rate

T represents the duration in years.

From the information given,

P = 800

R = 1000 - 800 = $200

T = 3 years

Therefore,

200 = (800 × R × 3)/100

200 = 24R

R = 200/24

R = 8.3%

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a. (14,375+570)(5.3) b. 158,417$

step-by-step explanation:

a. you are basically just setting up the equation. f= amount of debt hence 14,375. g= how much she is borrowing from her parents weekly hence 570 and t= the interest on her debt. creating the equation.

b.   14,375+570= 14,945

      14,945 x 5.3 = 79,208.5

      79,208.5 x 2(years) = 158,417(answer)