Relax. You're not completely lost.
The car has to cover 600 km. That's 600,000 meters.
If it could only move at 1 meter per second, it would take the car 600,000 seconds to cover the distance. (almost a week !)
But it can move faster than that. In fact, it can cover 80 meters every second.
How many times does it need to do 80 meters, in order to cover the whole 600,000 ? That's how many seconds it'll take.
That's division.
The asker of the second question needs a tutorial in radiometric dating. There is little likelihood that the daughter isotope has the same atomic weight as the parent isotope. To measure the mass isotopes doesn't tell us how many atoms of each exist. To get around that let's pretend — which will likely serve the purpose ineptly intended — that the values give an the particle ratio, 125:875.
<span>The original parent isotope count was 125 + 875 = 1000. The remaining parent isotope is 125/1000 or 1/8. 1/8 = (1/2)^h, where h is the number of half-lives. </span>
<span>h = log (1/8) ÷ log(1/2) = 3 </span>
<span>And 3 half-lives • 150,000 years/half-life = 450,000 years.</span>
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see the attachment.. hope it will help you
Answer:
Having a planner gives students freedom to plan, organize and keep track of their work to the best of their abilities and requirements. This has a dual benefit in that it increases the student's accountability to the commitments planned as well as provides them with a structure that contributes to their success.
Explanation: