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Last year, Rachael opened an investment account with $5800 . At the end of the year, the amount in the account had increased by 23.5% . How much is this increase in dollars? How much money was in his account at the end of last year?

Respuesta :

Answer:

[tex] \frac{x}{123.5}= \frac{5800}{100}[/tex]

Where x represent the amount at the end of the year and if we solve we got:

[tex] x = 123.5 *\frac{5800}{100}= 7163[/tex]

And the the increase would be:

[tex] Increase= 7163 -5800= 1363[/tex]

Step-by-step explanation:

We know that the initial amount is 5800 and at the end of the year the amount increase by 23.5% so then we can use the following proportional rule:

[tex] \frac{x}{123.5}= \frac{5800}{100}[/tex]

Where x represent the amount at the end of the year and if we solve we got:

[tex] x = 123.5 *\frac{5800}{100}= 7163[/tex]

And the the increase would be:

[tex] Increase= 7163 -5800= 1363[/tex]

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