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kalebboatman
20.12.2020 •
Mathematics
Chad and Eric left a 20% tip after having lunch at a restaurant. Chad's lunch cost $10.
Which equation can you use to find x, the cost of Eric's lunch?
Group of answer choices
A) 0.2(x + 10) = 5
B) 0.2x = 10 + 5
C) 0.2x + 5 = 10
D) 0.2x + 10 = 5
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Ответ:
The equation used to find x, the cost of Eric's lunch is![\mathbf{0.2(x+10)=5}](/tpl/images/1003/1042/98e13.png)
Option A is correct option.
Step-by-step explanation:
Chad and Eric left a 20% tip after having lunch at a restaurant.
Cost of Chad Lunch = $10
Let Cost of Eric's lunch = x
So, Total cost of Chad and Eric's Lunch = x+10
Now, they left a 20% tip
it means 20% of total cost of lunch
20% can be written as 0.2
So, 0.2 of total cost of lunch is tip of the meal
We can write: 0.2 of (x+10)
or 0.2(x+10)
Looking at options, considering $5 was the amount of tip, the final equation will be:
So, the equation used to find x, the cost of Eric's lunch is![\mathbf{0.2(x+10)=5}](/tpl/images/1003/1042/98e13.png)
Option A is correct option.
Ответ:
An irrational number cannot be expressed as a ratio between two numbers and it cannot be written as a simple fraction because there is not a finite number of numbers when written as a decimal. Instead, the numbers in the decimal would go on forever, without repeating.
Step-by-step explanation: