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elpancho755
31.03.2020 •
Mathematics
Luna buys a shirt that costs $15.65. She gives the cashier $20 and receives $3.25 in change. What is the percent error in the amount of change she was given?
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Ответ:
The error in the amount of change she was 25.28%.
Step-by-step explanation:
Given,
The actual price = 15.65$
The amount Luna gives to cashier = 20$
The change she receives = c = 3.25$
The actual amount of changes = x = total amount - actual price:
20$ - 15.65$ = 4.35
The percentage of error can be found using:![\frac{x-c}{x}](/tpl/images/0572/8061/337bd.png)
By putting the values in equation, we get
=>![\frac{4.35 - 3.25}{4.35} * 100](/tpl/images/0572/8061/1789e.png)
=>![\frac{1.10}{4.35} * 100](/tpl/images/0572/8061/5d6c7.png)
=> 25.28 %
Hence, the error in the amount of change she was 25.28%.
Ответ: