Tom invests $10,000 in a savings account that offers 3.5 percent interest, compounded continuously.
in 10 years tom will have earned $ in interest, and in years the investment will double. (use the rule of 70 where required.)

Part 1:

Amount invested in savings = $10000

APR = 3.5% or 0.035

t = 10 years

As given the account is compounding continuously, so the future value of compound continuously is given by:

Putting these values in formula we get;

A = $14,190.68

Interest earned = dollars

Part 2:

The rule of 70 is used to get a rough estimate of the time, in which the investment will double. So, we divide 70 by the APR to get the years.

Time =

Time = 20 years

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.