The principal P is borrowed at a simple interest rater for a period of time t. Find the simple interest owed for the use
P - $830, r-3%, t - 2 years

Interest=$49.8

Step-by-step explanation:

The formula is PRT/100

P=principal

R=rate

T=time

Input the given values

830×3×2/100

4980/100

49.8

Therefore the interest is $49.8

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

7

step-by-step explanation: