What property is this? (3x+12y)+(10x-5y)
1 answer:
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Answer:
Step-by-step explanation:
We can form a right triangle and use trigonometry for a right triangle to solve this. The ground distance the plane travels is its displacement in the x-direction. The 2500 meters the plane moves through represents the hypotenuse of right triangle, and the ground distance is the adjacent leg of the angle. Therefore, we set up the following equation:
, where
is the ground distance.
Solving, we get .
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Solution and Answer:
Amy swam 30 laps in 20 minutes.
Rate =
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