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Karolina [17]
3 years ago
13

There are 120 minutes in 2 hours. How many minutes are in 15 hours? what operation do I use

Mathematics
2 answers:
MArishka [77]3 years ago
6 0
The operation is multiplication . Just do 60 times 15 . You will get 900
erma4kov [3.2K]3 years ago
3 0
120\ minutes\ in\ 2\ hours\\\\
x\ minutes\ \ in\ \ 15\ hours\\\\\Making\ ratio:\\
120-2\\x-15\\\\Cross\ multiplication\\\\
120*15=2x\\\\1800=2x\ \ \ \ | divide\ by\ x\\\\
x=900\\\\900\ minutes\ in\ 15\ hours.
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Answer:

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Step-by-step explanation:

4x-2y=7. Equation 1

x+2y=3. Equation 2

Add the two equations

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5x=10 divide both sides by 5

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Substitute x=2 in equation 2

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Answer:

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