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iogann1982 [59]
3 years ago
10

Daniel took 12 index cards and wrote the numbers 1-12 on them, one number on each card. He then collected the cards, shuffled th

em, and drew one card from the stack. What is the probability that the number on the card is a multiple of 5?​
Mathematics
1 answer:
DENIUS [597]3 years ago
4 0

Answer:

2/12 or 1/6

Step-by-step explanation:

12 cards in total

Find the multiple of 5 first which are 5 and 10 in this stack of cards

There are 2 multiples of 5.

So the probability would be 2/12 or 1/6

Hope this helps :)

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------------------------------------------------------------------
Question
------------------------------------------------------------------
\boxed { \frac{n+h}{5}  =  \frac{f+9}{9}}

------------------------------------------------------------------
Split the fraction on the left
------------------------------------------------------------------
\boxed { \frac{n}{5} + \frac{h}{5}  = \frac{f + 9}{9}}

------------------------------------------------------------------
Take away h/5 from both sides
------------------------------------------------------------------
\boxed { \frac{n}{5}  = \frac{f+9}{9} - \frac{h}{5}}

------------------------------------------------------------------
Change the denominator to be the same
------------------------------------------------------------------
\boxed { \frac{n}{5} = \frac{5f+45}{45} - \frac{9h}{45}}

------------------------------------------------------------------
Put it into single fraction
------------------------------------------------------------------
\boxed { \frac{n}{5} = \frac{5f+45-9h}{45} }

-------------------------------------------------------------------
Rearrange (This step may not be necessary)
------------------------------------------------------------------
\boxed {\frac{n}{5} = \frac{5f-9h+ 45}{45} }


\bf \Longrightarrow \ Answer \ : \boxed {\boxed {\frac{n}{5} = \frac{5f-9h+ 45}{45} }}

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