Question

Jack is playing an online puzzle game. He has 100 points and earns 10 points for each puzzle he solves correctly. He will advance to the next round if his score is over 250 points. Which inequality can jack use to find how many more puzzles he must solve to advance to the next round?

Answer 1

Let $x$ be the number of puzzle games he solves.

Thus he needs to solve 15 puzzles since ;

$15×10=150$

So that $150+100=250$ points.

Then $10x$ where $x=15$ because he solves 15 puzzles, plus 100 must be greater than 250 so as to advance.

Hence ;$10x+100\gt250$