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Michelle T.

Tutor for 2 years, now an Electrical Engineer/ Project Manager

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Pre-Algebra

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Question:

Judy’s heart beats 70 times a minute. At this rate, how many times does her heart beat in an hour? A) 2800 B) 4200 C) 7000 D) 8400 E) 5000

Michelle T.

Answer:

* Thought Process 1- Because Judy's heart beats 70 times/ 1 minute our rate is in minutes. 2- So, we need think of how many minutes are in one hour to solve this question because the answers are in minutes, so we need a Conversion Factor . 3- If 1 hour = 60 minutes and her heart beats 70 times in just 1 minute , then in 60 minutes her heart beats 60x 70 = 4200 heartbeats/ 1 hour. BREAKDOWN 70/ 1 min x 60 min/1 hour = (70x1)/60 = 4200 .

Marketing

TutorMe

Question:

How do you identify your target customer?

Michelle T.

Answer:

1- Look at your current customer base , ie your demographic (young, old, men, women ) 2-Check out your competition - what are they doing right and what are they doing differently 3-Analyze your product/service. - are you a premium product, commodity, discount 4- Demographic in the area you are located in etc, etc

Algebra

TutorMe

Question:

Saying that 4 < √X < 9 is equivalent to saying what about x ? A. 0 < x < 5 B. 0 < x < 65 C. 2 < x < 3 D. 4 < x < 9 E. 16 < x < 81

Michelle T.

Answer:

*THOUGHT PROCESS 1-What in this problem is actually making the problem "hard " to solve? Answer: The square root of X right? 2- How can we get "rid" of of that square root sign? Answer: only way to remove the square root sign in this question is by raising the 4, √X, and the 9 to the power of 2. ---> 4^ 2 < √X^2 < 9^2 3- By doing this we know that √X multiplied by √X is equal to just X. 4- So now we're just left with 4^2 <X <9^2 5- 4 squared or 4^2 = 16 , 9 squared or 9^2 =81 6- Our final answer therefore is 16< X < 81 , which is answer E.

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