Answer:
x = log 7
Step-by-step explanation:
10^x=7
Take the log base 10 on each side
log10 (10^x)=log10 (7)
We dont need to write the 10, it is implied
log(10^x)=log (7)
The exponent goes out front since log a^b = b log a
x log 10 = log 7
log 10 = 1 since the base is 10 log10(10) =1
x = log 7
Answer:
maybe 15 students or 63 students and if not I am sorry of that's wrong
The answer is 15. Why because you flip the 2/3 to be 3/2 and it cancels out 2/3 leaving x=10 take the 3/2 and multiply the 3 times 10 which is 30 and divide by 2 which gives you the answer 15.
The probability of an event is calculated as = 
Here, the total number of outcomes = 12 red marbles + 8 blue marbles + 5 green marbles
So, total marbles = 25 marbles
Number of favorable or green marbles = 5 marbles
Probability of three green marbles if drawn with replacement =
×
× 
Probability of three green marbles if drawn with replacement =
×
× 
Probability of three green marbles if drawn with replacement = 