The denominator is 4 and the numerioar to make factor 1/2 would be 4/8 then 1/2
Answer:
x = 10
Explanation:
Note the following rules before we begin:
2 ln(a) = ln (a²)
ln (a) + ln (b) = ln (ab)
Now, for the given:
ln(20) + ln(5) = 2 ln(x)
ln(20*5) = ln(x²)
ln(100) = ln(x²)
This means that:
100 = x²
Therefore:
either x = 10 .........> acceped
or x = -10 .........> rejected as no negatives are allowed within ln functions
Hope this helps :)
First do
3x + -5x = -2x
Then do
-2x + 5x = 3x
Lastly do
3x+1
Answer:
12 nickels, 9 quarters, 15 dimes
Step-by-step explanation:
Let's call the number of nickels n, the number of dimes d, and the number of quarters q. Now, we can set up the following equations:
n+d+q=36
q=n-3
d=q+6
Now, we can do some substitution:
d=(n-3)+6=n+3
Plugging this into the first equation, you get:
n+(n+3)+(n-3)=36
3n=36
n=12
There are twelve nickels, meaning that there are 9 quarters and 15 dimes. Hope this helps!