Ike invests $7,660 in an account paying 7.27% simple interest annually. how much interest has ike gained after four years? a. $222.75 b. $2,227.53 c. $1,392.20 d. $13,922.05

b. $2227.53

Step-by-step explanation:

The formula of simple interest is given by :-

, where P =principal amount, r is the rate of interest (in decimal) and t is time in years./

Given : Principal amount P = 7,660

time t= 4 years

rate of interest = 7.27%=0.0727

Then, The simple interest is given for 4 years is  by :-

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1