70/r (growth rate) = doubling time\nr (growth rate) = 5%\ncalculate the doubling time.\n14 years\n1,400…

70/r (growth rate) = doubling time\nr (growth rate) = 5%\ncalculate the doubling time.\n14 years\n1,400 years\n0.14 years

70/r (growth rate) = doubling time\nr (growth rate) = 5%\ncalculate the doubling time.\n14 years\n1,400 years\n0.14 years

Answer

Explanation:

Step1: Convert growth rate to decimal

The growth rate $r = 5%=0.05$.

Step2: Apply the doubling - time formula

The formula for doubling time is $\text{Doubling Time}=\frac{70}{r}$. Substitute $r = 0.05$ into the formula: $\frac{70}{0.05}=1400\div5 = 1400\times\frac{1}{5}=140$. So the doubling time is $\frac{70}{0.05}=1400$ years.

Answer:

1400 years