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# Mark Z.

## Certified Mathematics Teacher (AP Calc, SAT, ACT, GRE)

### Astoria, NY (11105)

Hourly fee \$50.00
 Background check passed as of 5/31/13 You don't pay for tutoring unless you find a good fit! You don't pay for tutoringunless you find a good fit!

## Mark's Resources

First, let's distribute the left hand side: 4*3 - 4*2x = -44 12 - 8x = -44 Next, isolate our variable. We're going to do this by subtracting 12 from both sides of the equation. -8x = -44 - 12 = -56. Lastly, divide by -8 on both sides to get x completely alone...

Multiply both sides by x: 2 = 12x. Divide by 12 on both sides to isolate our variable x: 2/12 = x Reducing this fraction by factoring 2 out of top and bottom, we get x = 1/6.

# An executive invests \$29,000, some at 6% and some at 4% annual interest. If he receives an annual return of \$1,460, how much is invested at each rate? (answer)

Let x be the money he invested at 6% interest, and y be the money he invested at 4%. Now we know that x+y = 29,000, because that is the total amount he invested. Let's convert the percent annual interest to decimals: 6% = 0.06 and 4% = 0.04. To do this, divide 6% by 100%. The percent...

### Mark's Hourly Rate

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### Background Check Status for Mark Z.

Mark Z. passed a background check on 5/31/13. The check was ordered by Mark through First Advantage. For more information, please review the background check information page.

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