You invest a total of $5000 between two savings accounts. account a pays 2% annual interest and account b pays 4% annual interest. after one year, you have earned a total of $135 in interest. how much did you invest in each account? step by step

Investment in Account A = 1750

Investment in Account B = 3250

Step-by-step explanation:

Here, the total investment = 5000

Let the amount invested in account A = x

Therefore, the amount invested in account B = 5000-x

In Account A, rate of interest = 4% per year

Thus, interest earn in one year

=

=

Now, The interest in account B = 2% per year

Thus, the interest earn in one year

=

=

Therefore, total interest =

⇒

⇒

⇒

⇒

⇒

⇒

⇒

Therefore, investment in account A = $1750

While, in account B = 5000-1750 = $3250

555.99.

step-by-step explanation:

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graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.