Answer:
The value of t is 1.75 years.
Step-by-step explanation:
Given that simple interest formula is I = (P×R×T)/100. So you have to substitute the following values into the formula :
Carmen runs a video to DVD transfer business. She charges her customers $20.40 for each video transferred. Her expenses include
1 answer:
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Answer:
Step-by-step explanation:
Given that in 1987, the population of country A was estimated at 87 million people, with an annual growth rate of 3.5%
Thus the equation for population for country A would be
The 1987 population of country B was estimated at 243 million with an annual growth rate of 0.6%.
So equation for population for country B would be
where t = time in years and P in millions
a) P(A) = 2*87 when
Take log and solve
ln 2 = 0.005 t
t = 138.63
Thus after 138 years population will double for A
b) P(A) = P(B) when
Approximately after 35.5 years the populations of both countries would be equal.