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The coordinate plane represents a map. Each grid unit represents 20 miles. A retail company has a warehouse at N(70, 40). A store is located at P(70, −20). How long will it take a truck driving at 50 miles per hour to drive from warehouse N to this store?

Sagot :

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Answer:

24 hours

Step-by-step explanation:

Distance from warehouse (70, 40) to store (70, - 20)

x1 = 70 ; y1 = 40 ; x2 = 70 ; y2 = - 20

D = sqrt((x2-x1)² + (y2 - y1)²)

D = sqrt((70 - 70) + (-20 - 40)²)

D = sqrt(3600)

D = 60

Each unit grid represents 20 miles

The distance from store to ware house :

60 * 20 = 1200 miles

Speed of truck = 50 mph

Time taken = distance / speed

Time taken = 1200 / 50

Time taken = 24 hours

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