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Ludmilka [50]
2 years ago
6

Train A leaves the station traveling east at 50 mph while train B leaves the station 30 minutes later traveling west at 65 mph.

Choose the equation below that represents the distance in miles between the two trains, D, as a function of T, the time in hours after train B has departed.
Mathematics
1 answer:
stepladder [879]2 years ago
8 0

Answer:

Change 45 min to .75 hrs

Distance = speed * time

Train A's distance = 55(t+.75)

Train B's distance = 70t

The equation

D(t) = 70t + 55(t+.75)

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Answer:

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Step-by-step explanation:

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Its actually very simple.

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The rate of change of the linear function represented by the table is 3

<h3>Rate of change of a function</h3>

The rate of change of a function is also known as the slope of a function. The equation for calculating the slope is expressed as:

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Learn more on rate of change here: brainly.com/question/25184007

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Answer & Step-by-step explanation:

To find if they have a constant of proportionality of 12, use the following:

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Divide y by the x value (x,y), and if the remaining equation is true, then that table has a constant of proportionality of 12.*

:Done

*Make sure you check all the values in a table. Sometimes only the first values will have k=12, while the others don't.

**The constant of proportionality is represented by <em>k</em>.

3 0
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monitta
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