# Thread: Can someone help me out?

1. ## Can someone help me out?

ok if i had 100 jiffy bags and for all of them it cost £13.00 how would i work out how much each individual one costs? would it be 100÷13?

thanks

2. Originally Posted by Nath420
ok if i had 100 jiffy bags and for all of them it cost £13.00 how would i work out how much each individual one costs? would it be 100 divided by 13?

thanks
No.

Say 100 cost £13, if we divide both sides by 10 we get that 10 bags cost $\displaystyle \frac{13.00}{10}$ which equals £1.30.

Now repeat to find the cost of 1 bag.

3. So it would be 13p each? 1.30÷10= 13 if thats right

4. Originally Posted by Nath420
So it would be 13p each? i divided 1.30 by 10if thats right
Correct.

5. ok if i wanted to do more say like...2000 jiffy bags at £206. would it be 200÷206= 0.97. then 0.97÷200= 0.00485p each?

Sorrrry if im way out i was never good at maths

6. Yes, you're way off.

If 2000 jiffy bags cost £206, then to find the cost of one jiffy bag you would do
$\displaystyle \frac{206}{2000} = 0.103 = 10.3\;\text{p}$

01

7. So at the start i could of done 13.00÷100= 0.13p

8. Originally Posted by Nath420
So at the start i could of done 13.00÷100= 0.13p
Yes, that would have given you the cost of 1