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Shkiper50 [21]
4 years ago
8

Pat borrowed $2000 to help pay college expenses. The interest rate was 5% annually, and she will repay the loan in 4 years. How

much total interest will she pay during the 4 years?
Mathematics
2 answers:
Stella [2.4K]4 years ago
8 0

Answer:

the amount of interest she pays is 400 dollars

Step-by-step explanation:

Since 5 percent of 2000 is 100

I multiplied 100 by 4 because she waits 4 year to pay it off

which equals 400

(this is extra in case I misunderstood the question lol)

<em>I added 400 to the initial cost of 2000 </em>

<em>which is 2400</em>

valentina_108 [34]4 years ago
6 0

Step-by-step explanation:

5% multipyed by 4 years is 20%

20% of 2000 is 400

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Answer:

x = 5

Step-by-step explanation:

4x + 2y + z = 24

2x - 3y - z = 2

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-----------------

Eliminate z

Add the 1st and 2nd eqn

4x + 2y + z = 24

2x - 3y - z = 2

----------------

6x - 1y = 26 eqn A

Multiply the 2nd eqn by 2, then add the 3rd.

4x - 6y -2z = 4

5x + y + 2z = 21

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9x - 5y = 25 eqn B

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Now you have 2 eqns in 2 unknowns, not 3.

Multiply eqn A by 5 and subtract eqn B.

30x - 5y = 130 eqn A times 5

9x - 5y = 25 eqn B

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x = 5

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