Elizabeth invested $7,800 in an account paying an interest rate of 7 and 1/8 % compounded monthly. Mason invested $7,800 in an account paying an interest rate of 7 and 3/8 % compounded continuously. To the nearest dollar, how much money would Elizabeth have in her account when Mason's money has doubled in value?

answer: howdy

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

step-by-step explanation: 4 cause 2+2=4