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s9003792
04.02.2021 •
Mathematics
12
One month Carlos rented 5 movies and 2 video games for a total of $31. The next month he rented 3 movies and 8 video games for a
total of $56. Find the rental cost for each movie and each video game.
Х
5
?
Rental cost for each movie: s[]
Rental cost for each video game: s[]
Solved
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Ответ:
Let x be the rent for a movie and y is the rent for a video game
The following system of equations:
5x + 2y = 31 (1)
3x + 8y = 56 (2)
Solving the system of equations above we have:
x = (31-2y) / 5 (1) => replace x in (2) 3 ((31-2y) / 5) + 8y = 56 => y = $ 5.5
Replace y = $ 5.5 for (1) => x = ((11 - 11) / 5) = 4
So the rent for a movie is $ 5.5 and the price for renting a video games is $ 4
Step-by-step explanation:
Ответ:
To find:
Round $43,569.14 the nearest dollar
Solution:
The number after the decimal is less than 50. So, the amount $43,569.14 rounded to the nearest dollar is $43,569.
Thus, the answer is $43569.