Hard sat questions !!!!

stePabs
Thu, 17 Nov 2011 22:26:36 +0000

10 D) 3(X+Y)=10(X)+Y. Three times the sum of the two digits 3(X+Y) is equal to the the number XY, X being the 10s place digit and Y being the 1s place. So you must multiply X by 10 to get it in the 10s place and adding Y since it’s already in the 1s place 10(X)+Y.

11 C) be built. I’m pretty sure it should say “have been built”. Cause it’s saying the pyramid is thought to have been built some 4,300 years ago. It wouldn’t make sense to say “The pyramid is thought to be built some 4,300 years ago.”

12 A) 3. If the k is 3 and b=15 than a must be 5. 53=15, 153=45, 45*3=135, and so on.