You borrow 18,000 to buy a new car. you will pay 3,420$ in simple interest at the end of 6 years. what is the annual interest rate on your purchase?

I = Prt is the formula to use.

I = interest accrued. ($3420)

P= Principal ($18,000)

r = interest rate (what we're solving for)

t = time specified. (6 years)

3420 = 18,000 (r) (6)

3420 = 108,000

3420 ÷ 108,000 = 0.0316

We'll change the decimal to the percent by moving the decimal two place to the right. This will make it 3.2%.

Therefore, the annual interest rate would be 3.2%

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.