Tara has two standard, six-sided dice. If she rolls them 36 times, how many times should she expect a sum less than 5 to show up? Justify your answer.
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There are six sides on each die. For each possible score on Die 1, there are six possible scores on Die 2. So the number of possible combinations is 6*6 = 36. It follows that if the dice are thrown 36 times, you would expect each combination to come up once.
We therefore simply need to know how many combinations add up to less than 5. (I've interpreted this as not including a total of 5 itself). These combinations are: 1 and 1, 2 and 1, 1 and 2, 2 and 2, 3 and 1, and 1 and 3 ---> six combinations out of 36.
So you'd expect a sum less than 5 six times.
Kayla tutors for $20 per hour she spends $50 on transportation how much does she earn is she tutors for x hours
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The equation to solve this is 20x-50
During the election for class president 40% of the students order for Jennifer and 60% of the students voted for Kevin 300 students voted in total how many more students voted for Kevin than .Jennifer
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40%=4/10=4*(1/10)
60%=6/10=6*(1/10)
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1/10 of 300 is 30, therefore 4/10 of 300 is 120.
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1/10 of 300 is 30, therefore 6/10 of 300 is 180.
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So, 120 students voted for Jennifer and 180 students voted for Kevin therefore, Kevin received 60 more votes.
40% of 300 = 300 * 0.4 = 120 students for Jennifer 60% of 300= 300 * 0.6= 180 students for Kevin
180=120= 60 more students voted for Kevin
Which time is faster 5.3 or 5.19
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5.3 is because it it could be 5.30, and that is more than 5.19.
Alba needed to know about how much the sum of 19.6, 23.8, and 38.4 is. She correctly rounded each of these numbers to the nearest whole number. What three numbers did she use? *A 19, 23, 23 B 19, 24, 38 C 20, 24, 38 D 20, 24, 39
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If the number after the decimal is 1-4 you drop it, if it's 5-9 you add one to the whole number. In 19.6, 6 is 5-9 so you add one to 19- 19.6=20. In 23.8, 8 is 5-9 so add one to 23- 23.8=24. In 38.4, 4 is 1-4 so you drop it- 38.4=38. So the answer is C. 20, 24, 38 :) hope this helps
A bag of bagels contains 10/16 blueberry bagels. There are fewer garlic bagels. what is the fraction of garlic bagels?
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6/16 because the amount of garlic bagels is the amount of blueberry bagels subtracted by the amount of bagels all together making the answer 6/16
6/16, because if there are 16 bagels, and 10 are blueberry, then the others have to be garlic.