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andrey2020 [161]
3 years ago
9

Lucy opened an investment account with $6600. At the end of the year,the amount in thr account had increased by 6.5%

Mathematics
1 answer:
Masteriza [31]3 years ago
4 0

Answer:

Part a) The increase in dollars is \$429

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

Step-by-step explanation:

Let

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

we know that

100\%+6.5\%=106.5\%

106.5\% =\frac{106.5}{100}=1.065

so

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

The increase is equal to

\$7,029-\$6,600=\$429

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