Problem of the Week
Did you figure it out? Answer: 12π Solution: The circumference of a circle is its diameter multiplied by π. If we say that P is the length of the pufferfish, then we c..
Answer: 90 miles per hour
Solution: Since 11:00 am to 5:00 pm is 6 hours, the train takes 6 hours to get from London to the small town in Scotland. If we divide 540 miles by 6 hours, we get 90 miles per hour. So, the train’s average speed during its journey is 90 miles per hour.
Answer: 482 points
Solution: First, we set up a system of equations for the points scored by the Serpents, the Badgers, and the Eagles:
S = 1.25B + 32
B = 5/6E – 3
S + B + E = 1,250
When we solve this system, we get S = 472, B = 352, and E = 426. Since S is the greatest value so far and we know that the Lions beat that score by 10 points, the Lions must have scored 472 + 10 = 482 points.