Tuesday, July 28, 2015

Break Out of Jail

Congratulations, thanks to your hard work, the bratty kid got 100% on his extra credit work and can now move up to the eighth grade! But you're sick of being in this cell. Fortunately, Jerry was digging--as he loves to do--and he found a note left by a previous prisoner. It's a diagram that shows how he dug a hole through the floor to the room below that would let one of the bars slip through and create enough of a space to squeeze out of your cell! After he used it for his escape, he put a small piece of wood in to keep the bar up and covered it back up with dirt. Unfortunately, they replaced the bars after his escape and the spacing is different so you can't just count the number of bars over to see where you have to dig. Fortunately, on the back of the slip of paper, the prisoner left some calculations. You've learned that the height (h) in the diagram is 16 feet less than three times the width (w). You've also learned that the total area of the rectangle in the diagram is 75 square feet. How many feet over from the edge of your cell (w) should you dig to open up the hole and slide the bar through?

Good luck!





Set yourself free!
 

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