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tiwaribianca475
21.02.2020 •
Mathematics
Olivia family drove to Disney land For spring break. Her mom and dad shared the driving duties for a total of 14 hours. her mom drove 65 mph and her dad drove 60 mph if they drove a total of 895 miles how many hours did each person drive for
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Ответ:
For this case we propose a system of equations:
x: Variable that represents the amount of hours that Olivia's mother drove
y: Variable that represents the amount of hours that Olivia's father drove
So, we have:
From the first equation we have:
Substituting in the second equation:
Thus, Olivia's father drove 3 hours.
Olivia's mother drove 11 hours.
Ответ: