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natka813 [3]
3 years ago
12

The time taken for a journey on a motorway varies inversely as

Mathematics
1 answer:
Westkost [7]3 years ago
3 0

Time that will be taken at speed of 45 miles/hr is 1.8 hrs

Step-by-step explanation:

  • Step 1: Given the speed of the journey = 54 miles/hr and time = 1.5 hours. Find the distance of the journey using the speed formula.

Distance = Speed × Time

               = 54 × 1.5 = 81 miles

  • Step 2: Calculate the time taken for this journey given speed = 45 miles/hr

TIme = Distance/Speed

        = 81/45 = 1.8 hrs

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Question 13 of 47
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