Pretty sure it would be C
Answer:
x = 10
Step-by-step explanation:
You can try the answers to see which works. (The first one does.)
Or, you can solve for the variable:
Divide by 75
... (1/5)^(x/5) = 3/75 = 1/25
Recognize that 25 = 5^2, so ...
... (1/5)^(x/5) = (1/5)^2
Equating exponents, you have
... x/5 = 2
... x = 10 . . . . . multiply by 5
_____
You can also start by taking logarithms:
... log(75) +(x/5)log(1/5) = log(3)
... (x/5)log(1/5) = log(3) -log(75) = log(3/75) = log(1/25) . . . . simplify the log
... x/5 = log(1/25)/log(1/5) = 2 . . . . . simplify (or evaluate) the log expression
... x = 10 . . . . . multiply by 5
_____
"Equating exponents" is essentially the same as taking logarithms.
Answer:
Option 2
Step-by-step explanation:
36x23 is 828 and the second optinon combined makes 828
Answer:
There are 448 freshmen
Step-by-step explanation:
Answer:
1 7/12
Step-by-step explanation:
because the water was poured to the other glass so it means that we are adding
= 5/6 + 3/4
={(2×5) + (3×3)}/12
that 12 is due to LCM of 6 and 4
={ 10 + 9 }/12
= 19/12
= 1 7/12
those are my thoughts
