Mathematics: How do you get rid of a fraction?

How do you get rid of a fraction?

thechef129

21.08.2022

$351

$5,751

Step-by-step explanation:

Justin opened an investment account with $5400.

At the end of the year, the amount in the account had increased by 6.5%.

So,

$5,400 - 100%

$x - 6.5%

Write a proportion:

$\dfrac{5,400}{x}=\dfrac{100}{6.5}$

Cross multiply:

$100x=5,400\cdot 6.5\\ \\x=54\cdot 6.5\\ \\x=\$351$

Justin's increase in dollars is $351.

In his account at the end of the year was

$\$5,400+\$351=\$5,751$

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