We have to find the percentage ratio of two numbers. It is
. And the correct answer is D).
Alternatively, by setting up a ratio, we can write that If
400_____100%
36_____x
And x=9%
Answer:
ln 2.
Step-by-step explanation:
One of the rules of logarithms is
ln a - ln b = ln a/b.
So ln 16 - ln 8 = ln 16/8
= ln 2.
Answer:
D) 252.00
Step-by-step explanation:
Initial price of computer = $400
Less 30 % = -0.30 × 400 = - 120
Sale price = 280
Less 10 % = -0.10 × 280 = -28
Final price = $252
Step-by-step explanation:
You have 120 bottles of Cola and 120 bottles of Sprite.
You can exchange 3 empty Cola bottles for a new bottle of Sprite.
You can exchange 4 empty Sprite bottles for a new bottle of Cola.
You can borrow empty bottles, but must return them in the end.
What is the maximal number of bottles of drink that you can drink? Prove the optimality of your result.
As this is a puzzle, please give short and clever answers rather than tedious bruteforce calculations.
