Cherrie N.

2 years tutoring experience

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Finance

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Question:

How much money would you pay back on a loan of $250 borrowed at a 12% yearly interest rate?

Cherrie N.

Answer:

To find this, you will need to multiply 250 * (1 + 12%) This will give you $280. Or you can multiply 250*12% = 30 And add the interest of $30 back to the $250 that you borrowed.

Algebra

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Question:

Factor 4x^2 + 12x + 5

Cherrie N.

Answer:

To solve this using the X-Box method, draw an X. The number that goes into the top of the X is the product of coefficients a and b, so (4*5) The number that goes on the bottom of the X is b (12) Now, find two numbers that are the product of the top (20) and the sum (12) of the bottom on the X. These two numbers are 10 and 2 because (10*2) = 20 and (10+2) = 12 Next draw a box. Since we know that a's coefficient has to be 4x^2, we will put that in box 1 and 5 in box 4. The two numbers we found now go into box 2 and 3. Lastly, you will find numbers outside of the box in order to get the equation 4x^2 + 12x + 5, which is (2x+5)(2x+1)

Algebra

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Question:

solve for x: 20x + 40 = 140

Cherrie N.

Answer:

To find x, you would need to subtract 40 from both sides to get: 20x = 100 To get x by itself, you divide both sides by 20 to get x = 5

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