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makvit [3.9K]
3 years ago
8

A train travels at a constant speed of 35 mi/h. How long does it take the train to travel 490 mi?

Mathematics
1 answer:
allsm [11]3 years ago
7 0
14 hours . Just divide 35 into 490 & ypu get 14
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The house has a form of a rectangle with one side two and a half times as long as the other side. a Construct the expression for
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Answer: A=2.5x^{2}


Step-by-step explanation:

1. Let's write the following formula for calculate the area of a rectangle:

A=yx

Where y is the lenght (the longer side) and x is the width (the shorter side).

2. You know that the length is 2.5 times as long as the other side, which indicates a multiplication. Then:

y=2.5x

3. So, you must substitute y into the equation for calculate the area of the rectangle and then you must simplify.

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A=(2.5x)(x)\\A=2.5x^{2}


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A car starts from an initial velocity of 10m/s and accelerates at 2.5m/s².how long will it take the car to reach a speed of 40m/
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A=(v-u)/t
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To find out how far it went, you do:
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d=10+1/2(2.5)(12)^2
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Hope this helps :)
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Which two numbers does √52 lie between on a number line?
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