The total cost, in dollars, of 4 pencils and 5 pens if each pencil costs w cents and each pen costs 2w cents
1 answer:
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Simple...
you have
and 
Just subtract...but first find a common denominator...
Use 40 as the common denominator...
and
So, subtract,
=
Thus, your answer.
you have
Just subtract...but first find a common denominator...
Use 40 as the common denominator...
and
So, subtract,
=
Thus, your answer.
Answer:
Though it may vary, it's going closer to 0.5 as long as we enlarge our sample.
Step-by-step explanation:
1) Since a coin has heads and tails, then a sample proportion of 40 we can simulate it using some applets.
2) Here are the most common outcomes, as long as we continue on flipping coins.
If we continue enlarging our sample (80, 120,160...) the probability goes closer to 0.5
This shows: the theoretical probability goes closer and closer to the experimental probability of heads and tails