The equation that can be used to represent how much money, x, Joelle has left is 15.75 = 6.38 + x. The correct option is D.
What is an equation?
An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
Given that Joelle has $15.75 and She spent $6.38 at the store. Therefore, the equation to represent how much money, x, Joelle has left is,
Total Amount = Amount spend by Joelle + Amount left with Joelle
$15.75 = $6.38 + x
15.75 = 6.38 + x
Subtract 6.38 from both the sides of the equation,
15.75 - 6.38 = 6.38 + x - 6.38
15.75 - 6.38 = x
x = $9.37
Hence, the equation that can be used to represent how much money, x, Joelle has left is 15.75 = 6.38 + x.
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