500 before training session
250 at start of session
(1 hr = 60 min.....60/15 = 4...so there is 4 fifteen minute intervals in 1 hr.)
150 every 15 minutes...150 x 4 = 600
so total amount of water is : 500 + 250 + 600 = 1350 ml
Given:
The pair of expressions in the options.
To find:
The two expressions are equivalent for any value of y.
Solution:
Two expressions are equivalent for any value of y, iff they are equivalent.
Clearly, 
is not equivalent to 
or 
. So, options A and B are incorrect.
The expression 
is not equivalent to 
. So, option C is incorrect.
The expression is equivalent to 
.
Therefore, the correct option is D.
If you would like to know what percent is 27.30 of 36.40, you can calculate this using the following steps:
x% of 36.40 = 27.30
x/100 * 36.40 = 27.30
x/100 = 27.30/36.40
x = 27.30/36.40 * 100
x = 75
To check: 75% * 36.40 = 75/100 * 36.40 = 27.30
The correct result is 75%.
Plug in the 1/2 where the a’s are answer is -3
