If x is the amount of time Gillian takes,
1/10 - 1/x = 1/25
Therefore, the answer is A
Answer:
x = 8
Step-by-step explanation:

Therefore:








Answer:
140
Step-by-step explanation:
I think you mean "lowest common denominator" where you use the word "benchmark."
The LCD of 3/7 and 16/20 is 140; 140 is the smallest number evenly divisible by both 7 and 20.
Then 3/7 → 60/140 and 16/20 → 112/140. 112/140 is between 1/2 and 1.
Answer:
option b
-3/2
Step-by-step explanation:
Given in the question an expression
ln
First apply logarithm divide rule
= ln1 - ln√e³
ln(1) = 0
so
ln1 - ln√e³ = 0 - ln√e³
-ln√e³ = -ln(e³)^1/2
Apply logarithm power rule
- ln(e³)^1/2 = -lne
-3/2ln(e)
As we know that
ln(e) = 1
so,
-3/2(1)
-3/2