Will Fan and Medal
Nine and three-sevenths feet of ribbon is glued to the circumfrence of a round table what is the diameter?

Question

Will Fan and Medal
Nine and three-sevenths feet of ribbon is glued to the circumfrence of a round table what is the diameter?

anonymous · Answer

http://student.alphaplustesting.org/TestQuestions/maths-questions/maths7-ex4.2-q1.png

kamibug · Answer

d = C / pi

anonymous · Answer

I dont know how to do it just looking at the problem i could tell you the C= 9 3/7 feet

kamibug · Answer

Right. That's the circumference. The problem is asking for the diameter, which is equal to the circumference divided by pi (22/7). :)

You can solve it like this ... 

First change 9 and 3/7 to 66/7
Then use the "Keep, Change Flip" method to divide it by 22/7. 

$$d = \frac{ 66 }{ 7 } * \frac{ 7 }{ 22 }$$

anonymous · Answer

C???

anonymous · Answer

@KamiBug @AloneS

kamibug · Answer

Not quite. How did you get C ? 
Check your calculations again. :)

anonymous · Answer

I got C by gussing i am not very good at math. maybe B???

kamibug · Answer

B is right. Here's why ! 
Just multiply across the fractions...
66*7 = 462
and
7*22 = 154
Then divide 462 / 154 = 3
Get it ? :)

anonymous · Answer

Thank you!!! :)

kamibug · Answer

No problem :D Feel free to keep tagging me :P