Sunday, November 14, 2010

Connor's Post for November 9th Question 13

In math class we were all assigned questions and mine was question 13 in section 2.3.

13. The diameter of Pluto is 6/17 the diameter of Mars. Mars is 17/300 the diameter of Saturn.

A) What fraction of the diameter of Saturn is the diameter of Pluto.

Since Pluto is 6/17 of Mars and Mars is 17/300 of Saturn you need to cancel out the 17.
You are left with 6/300 and that is 0.02.
0.02 x 50 = 1
1/50 is the final answer.

B) The diameter of Saturn is 120 000 km. What is the diameter of Pluto?

1/50 = 0.02
120000 x 0.02 = 2400
The diameter of Pluto is 2400km.

1 comment:

  1. Good job Connor! Although you did some explaining on how you got your answers, I think you could have done a better job. Like in question a), you could have shown how you got 0.02. And it's not exactly clear where you got 50 either.