Difficult SAT Math Problems

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1

<p>I'm having trouble with this SAT math problem:</p>

<p>Jesse inherits $55,000, which he decides to invest. He uses a portion of it for a low-risk investment that earns 5.76% and the remainder for a higher-risk investment that earns 7.98% interest. The desired total for the investments at the end of one year is $58,500. Algebraically find how much Jesse should invest at each rate.</p>

2

<p>Isn't it something like
3500=0.0576X+(55000-X)0.0798</p>

3

<p>That doesn't work at the end you get:</p>

<p>54,111 = -.0222</p>

4

<p>Hmmm.....that's wierd...I don't know then</p>

5

<p>Hey, it works, you get X=40045.05</p>