algebra
posted by Anonymous .
The halflife of 234U, uranium234, is 2.52 multiplied by 105 yr. If 98.8% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed?

(1/2)^(T/2.52*10^5) = 0.988
T is the time, in years, since it was 100% U234.
Solve for T. Use of logs is recommended.
T = 4390 years
That rounds off to 4000 years.
Respond to this Question
Similar Questions

math
The halflife of 234U, uranium234, is 2.52 multiplied by 105 yr. If 97.7% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? 
math
The halflife of 234U, uranium234, is 2.52 multiplied by 105 yr. If 97.4% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? 
math
solve the problem. the halflife of 234U, uranium234, is 2.52 multiplied by 105 yr. If 98.3% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? 
algebra
The halflife of 234U, uranium234, is 2.52 multiplied by 105 yr. If 98.8% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? 
algebra
The halflife of 234U, uranium234, is 2.52 multiplied by 105 yr. If 98.6% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? 
math
The halflife of 234U, uranium234, is 2.52 multiplied by 105 yr. If 98.7% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? 
algebra
The halflife of 234U, uranium234, is 2.52 105 yr. If 98.4% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? 
algebra
The halflife of 234U, uranium234, is 2.52 105 yr. If 97.7% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? 
ALGEBRA
The halflife of 234U, uranium234, is 2.52 multiplied by 105 yr. If 98.3% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? 
MATH104
he halflife of 234U, uranium234, is 2.52 multiplied by 105 yr. If 97.5% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed?