barbara invests $500 at a rate of R% per year simple interest. at the end of 12 years, the total interest earned is 180. find the value of R​

3

Step-by-step explanation:

Interest = R% / year

(R% x $500) x 12 years = $180

(R% x $500) = $180 / 12

(R% x $500) = $15

Barbara get $15 interest per year. Now calculate the rate

R = ($15 x 100) / $500 = 3

3% of $500 is $15

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )