23% of 100 AND if x=40, find x+6 – SAT Math Prep

What is 23% of 100? A) 23 B) 46 C) 77 D) 123	If x = 40, what is the value of x + 6? A) 34 B) 40 C) 46 D) 64
Remember, percent means “per” means “divide” and “cent” means “100”, therefore, percent can be written as “/100“ Therefore, 23 percent, or 23% can also be written as 23/100 or 23 100 Another thing to remember is whenever you see the word “of” you must multiply the numbers on either side. In this case, you can multiply 23% and 100. Solving this, we get 23 x 100 100 The 100 in the numerator cancels with the 100 in the denominator, and we are left with 23 as the answer. Another way to solve this is to remember that to find a% of any number, simply do the following: a x any number 100 Therefore, 23% of 100 is 23 x 100 100 We get the same answer of 23 again.	Given that x = 40, for an algebraic equation like this, wherever you see the letter x, replace with with 40. x+6 becomes 40+6 Solving this gives us 46.
The correct answer is A	The correct answer is C