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Tutor profile: Kelley W.

Inactive
Kelley W.
Project Manager and Facility Security Officer at IT Company
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Questions

Subject: Pre-Algebra

TutorMe
Question:

Evaluate 3 + 6 x (5 + 4) / 3 - 7 using the order of operations.

Inactive
Kelley W.
Answer:

1. First simplify what is in the PARENTHESES. So (5+4) = 9. So simply the formula to 3 + 6 x (9) / 3 - 7. 2. Next complete the MULTIPLICATION. So (6x9)= 54. So simply the formula even more to 3 +54 / 3 - 7. 3. Next complete the DIVISION. So 54/3 = 18. So simply the formula even more to 3 + 18 - 7. 4. Next complete the ADDITION. So 3 + 18 = 21. So simply the formula even more to 21 -7. 5. Finally, complete the SUBTRACTION. So 21 - 7 = 14

Subject: Basic Math

TutorMe
Question:

Dividing fractions: What is (1/3) / (3/4)?

Inactive
Kelley W.
Answer:

1. Change the way you look at the formula. Dividing fractions is the same as multiplying by the reciprocal of the divisor. So in other words, (1/3) / (3/4) = (1/ 3) x (4/3) 2. Simplify the second fraction (if possible), and then complete the multiplication. 3. Start by multiplying the top numbers in each fraction, so the top = 1 x 4 = 4 4. Then multiply the bottom numbers in each fraction, so the bottom = 3 x3 = 9 5. So the answer is 4/9

Subject: Algebra

TutorMe
Question:

Solve a basic linear algebraic equation: 4x + 16 = 25 -3x

Inactive
Kelley W.
Answer:

1. Rearrange the equation so that all of the "x" variables are on one side and all of the constants are on the other side. So, start by adding 3x to the left hand side of the equation and subtracting 16 from the right hand side of the equation. So it should look like this: 4x +3x = 25-16 2. That can be reduced down to 7x = 9 3. Isolate the coefficient from the variable by dividing 7 on each side of the equation, so 7x/7=9/7. 4. This results in x=9/7

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