1. Francisco invested $5,000 into an account that earns 3% compounded quarterly. How many times will Francisco earn interest after keeping the money in the account for 5 years?

2. What will be the value of his account in 5 years if he does not make any additional deposits or
withdrawals?

3. After how many years will Francisco’s account reach $10,000

4. If Francisco wanted to double his money in 12 years, what Interest rate would his account have to earn?

10,002.21

Step-by-step explanation:

1)4x5= 20 times

2) principal= 5000

interest rate per year= 3%

compounded times per year=4

time in years = 5

the formula is amt= p*(1+r/n)^(n*t)

thus

Amount = 5805.92

3) If time in years = 23.2

then

amount = 10,002.56

4) Principal = 5,000

interest rate per yr= 5.82%

Compounded times per year = 4

time in years =12

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

the equation is going to be