anonymous
  • anonymous
A man invests x amount of money at 2% interest. The next day he invests $800 more than the previous morning into an account that earns 4% interest. At the end of one year he has earned a total of $112 in interest. How much money was invested in each account? Which of the following equations could be used to solve the problem? 0.02x + 0.04(800) = 112 0.02x + 0.04(x + 800) = 112 0.04x + 0.02(x + 800) = 112 0.04x - 0.04(x + 800) = 112
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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zepdrix
  • zepdrix
Let's rewrite our 2% as a decimal, \(\large 0.02\). Our amount invested is represented by \(\large x\). The interest based off of the initial investment can be calculated by multiplying our `amount` by our `interest rate`. \(\large 0.02x\) Understand how we came up with that part of the problem?
zepdrix
  • zepdrix
The next day, our amount has increased by $800. It's the same amount \(\large x\), but increased by 800. We can write it like this \(\large (x+800)\). And this amount is invested at 4%, or as a decimalm \(\large 0.04\) Do you think you can figure out how the second part should look, based on what we did for the first day?
anonymous
  • anonymous
That's so confusing you could put it in latin and i would understand it better. Just tell me what the anwser is? lol

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