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Lucy opened an investment account with $6600. At the end of the year,the amount in thr account had increased by 6.5%
How much is this increase in dollars? How much money was in her account at the end of last year?

Respuesta :

calculista

Answer:

Part a) The increase in dollars is [tex]\$429[/tex]

Part b) The amount in Lucy's  account at the end of last year was [tex]\$7,029[/tex]

Step-by-step explanation:

Let

x-----> amount in Lucy's  account at the end of last year

we know that

[tex]100\%+6.5\%=106.5\%[/tex]

[tex]106.5\% =\frac{106.5}{100}=1.065[/tex]

so

[tex]x=1.065*\$6,600=\$7,029[/tex] -----> amount in Lucy's  account at the end of last year

The increase is equal to

[tex]\$7,029-\$6,600=\$429[/tex]

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