The speed of an Arabian horse is "4x + 2" miles per hour slower than a thoroughbred horse with a speed of "25x − 5" miles per hour. Find a single expression that represents the speed of an Arabian horse. A) 21x − 3 B) 21x − 7 C) 29x − 3 D) 29x − 7
Answers
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Speed of an Arabian horse is 21x - 7 miles per hour
Solution:
Given that,
The speed of an Arabian horse is "4x + 2" miles per hour slower than a thoroughbred horse with a speed of "25x − 5" miles per hour
Therefore,
Speed of thoroughbred horse = 25x - 5 mph
Speed of an Arabian horse = Speed of thoroughbred horse - ( 4x + 2 )
Speed of an Arabian horse = 25x - 5 - (4x + 2)
Speed of an Arabian horse = 25x - 5 - 4x - 2
Speed of an Arabian horse = 25x - 4x - 5 - 2
Speed of an Arabian horse = 21x - 7
Thus, Speed of an Arabian horse is 21x - 7 miles per hour
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