Answer:
15/7
Step-by-step explanation:
To divide fractions, the process is as follows:
1) Flip one of the fractions over (numerator becomes denominator, denominator becomes numerator). In this problem, this step looks like:
5/7 divided by 1/3 ---> 5/7 divided by 3/1
2) Once one fraction is flipped, change the division sign to a multiplication sign. In this problem, this step looks like:
5/7 divided by 3/1 ---> 5/7 * 3/1
3) Multiply the fraction (multiply one fraction's numerator and denominator by the other's) In this problem, this step looks like:
5/7 * 3/1 ---> 15/7.
To check, use the same steps in the problem ? * 1/3 = 5/7. You'll find that 15/7 * 1/3 = 5/7.
Answer:
7=x
Step-by-step explanation:
multiply 5 and 2x by 2, you'll then have (10+4x)=-4+6x. Then add 4 to both sides and you have (14+4x)=6x. Subtract 4x from both sides and that'll get you 14=2x and you divide 2 from each side to get x by itself so 7 is your answer.
Answer:
Answer:1.5*10^9 years
Step-by-step explanation:
The half life of the substance is given i.e 4.5B years. You can change it into seconds by multiplying it with 365 and 86400.
The current no of particles is given 78.88% which will be equal to 78.88 if you assume the substance had 100 no of particle initially.
Determine the decay constant by dividing 0.69 by half life
use these values in the equation for the answer.
[ln and e are inverse functions to eachother]
Answer:
(0, 0)
Step-by-step explanation:
The origin is a fixed point from which coordinates are measured.
