SAT WORD PROBLEM PREP

Question

The operation N ♦ P is defined by 2n^2-p/np. What is -2 ♦ 5?

 

*They put that random symbol there and I do not know what it means.

* /= over. Ex: 1 over 2 (fractions)

Answer 1

N ♦ P = 2n^2-p/np

 

The diamond is merely a new operator introduced specifically for this problem.

 

The operator is defined in the problem such that all that is required is that you plug in the appropriate values where appropriate, and then solve.

 

-2 ♦ 5 = 2(-2)^2-[5/(-2)(5)]

 

-2 ♦ 5 = (2)(4)-[5/-10]

 

-2 ♦ 5 = 8+(1/2)=8.5