Kaylon B.

Undergraduate at the University of Connecticut

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Pre-Algebra

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Question:

Alison's mom gave her a total of $50 to buy school supplies. She spent $25 on a calculator, and she bought pencils in a 24-pack. She has $18 left over. What is the price of each individual pencil?

Kaylon B.

Answer:

To start, we know Alison spent $25 on a calculator, so we can subtract $25 from the total amount she had to start with which was $50. $50 - $25 = $25 Next, we know she has $18 left over, with this information we can determine how much she spent on the pack of pencils. So we subtract $18 from $25. $25 - $18 = $7 Now we know that Alison spent a total amount of $7 on the pack of pencils, but, the question asked what the price of each individual pencil is. In the question it was stated that Alison had a bought a pack of 24 pencils. With this information all we have to do is divide 7 by 24 to figure out how much each pencil costs. $7/24 = 0.29 cents The price of each pencil would be 0.29 cents.

Basic Math

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Question:

There are a total of 20 jelly beans in a cup. There are 4 yellow jelly beans, 6 red jelly beans, 3 blue jelly beans, and 7 green jelly beans. What is the probability (percentage) of reaching into the cup and pulling out a red jelly bean.

Kaylon B.

Answer:

To figure this out, all we need to do is take the number of red jelly beans in the cup and divide it by the totals number of jelly beans in the cup. Then take that answer and multiply it by 100 to get a percentage. 6/20 = 0.3 0.3 x 100 = 30% The answer is 30%

Psychology

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Question:

There are many different parts of the brain, those of which control, emotion, memory/cognition, movement, etc. Which part of the brain causes emotion? Provide a study done to observe this feature.

Kaylon B.

Answer:

The limbic system within the brain controls emotions. The limbic system consists of three structures: the hypothalamus, hippocampus, and amygdala. There was a study done on rats to observe the features of the limbic system, more specifically, the amygdala. The psychologists performing this experiment decided to stimulate a part of the rats brain, this being the amygdala. In doing so, the experimenters observed how the rats got more and more aggressive as stimulating of the amygdala proceeded. Thus, coming to the conclusion that stimulation of the amygdala resulted in angry, aggressive behavior.

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