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IgorLugansk [536]

2 years ago

5

a truck can travle 300 miles in the same time that it takes a car to travel 330 miles. If the truck's rate is 5 miles per hour s

lower than the car's find the average rate for each

1 answer:

yanalaym [24]2 years ago

5 0

<h2>The speed of car is 55 miles per hour and speed of truck is 50 miles per hour .</h2>

Explanation:

Let the speed of the car is v miles/h , therefore the speed of truck is ( v - 5 ) miles per hour .

Because time = $\frac{Distance}{Speed}$

Thus in case of truck the time t₁ = $\frac{300}{v-5}$

In case of car the time t₂ = $\frac{330}{v}$

But time is the same in both cases , therefore

$\frac{300}{v-5}$ = $\frac{330}{v}$

or 30 v = 1650

or v = 55 miles per hour

Therefore speed of car is 55 miles per hour

Thus speed of truck is 50 miles per hour

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1)

Answer:

Part 1)

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Part 1)

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Part 3)

Since the time of ascent of ball is same as time of decent of the ball

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Part 1)

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Part 1)

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