Question

Use I = PRT for each

1.) P= $12,000
R = 4%
T = 3 years
Find I

2.) R= 6%
T= 6 years
I = $480.00
Find P

Thank you!!:)

Answer 1

mate i only know 1st one i will give answer for 1st question

Answer 2

1) I = $1,440

2) P = $1,333.33

Explanation:

The formula for calculating simple interest is:

Simple Interest Formula

`\large\boxed{I=Prt}`

where:

• I is the total interest accrued.
• P is the principal amount invested.
• r is the interest rate (in decimal form).
• t is the time (in years).

`\hrulefill`

Question 1

Given values:

• P= $12,000
• r = 4% = 0.04
• t = 3 years

Substitute the given values into the simple interest formula and solve for I:

`\begin{aligned}I&=12000 \cdot 0.04 \cdot 3\\\\I&=480 \cdot 3\\\\I&=1440\end{aligned}`

Therefore, the interest (I) is $1,440.

`\hrulefill`

Question 2

Given values:

• I = $480
• r = 6% = 0.06
• t = 6 years

Substitute the given values into the simple interest formula and solve for P:

`\begin{aligned}480&=P\cdot 0.06 \cdot 6\\\\480&=0.36P\\\\(480)/(0.36)&=(0.36P)/(0.36)\\\\1333.333...&=P\\\\P&=1333.33\end{aligned}`

Therefore, the principal (P) is $1,333.33.