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2 years ago

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At 3:30 p.m., Berto’s train was 34 miles past the egg farm, traveling at an average speed of 85 miles per hour. At the same time

on a nearby track, Eduardo’s train was traveling at an average speed of 110 miles per hour and had 12 miles to go before it reached the egg farm. To the nearest hundredth of an hour, after how much time will the trains meet up? 0.11 hours 0.25 hours 0.88 hours 1.84 hours green t-shirts

1 answer:

seropon [69]2 years ago

6 0

Answer:

Step-by-step explanation:

Berto’s train was 34 miles past the egg farm .

Eduardo’s train had 12 miles to go before it reached the egg farm.

Distance between two trains = 34 + 12 = 46 miles

This distance has to be reduced to zero for their crossing each other .

Rate at which this distance is reduced = their relative velocity

= 110 - 85

= 25 miles / h [ They are moving in the same direction ]

So, time taken for them to meet each other

= 46 / relative velocity

= 46 / 25

= 1.84 hours .

Guest

1 year ago

thx

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x= A ticket
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2 years ago

What is the measure of Angle J K L? Triangle J K L . The exterior angle to angle K has a measure of 83 degrees. 83 degrees 97 de

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Step-by-step explanation:

Given:

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We have to find the measure of $\angle JKL$ .

In $(\triangle\ JKL)$ we see that the exterior angle is in linear pair with $\angle JKL$ .

Note:

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Let $\angle JKL$ be 'x' degrees .

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2 years ago

Read 2 more answers

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Step-by-step explanation:

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2 years ago

Prove that (sec 12A-1)/(sec 6A-1)=tan 12A/tan 3A

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Let $x=3A$ . Recall the following identities,

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$=\dfrac{2\cos2x\sin^22x(1+\cos2x)}{\cos4x(1-\cos^22x)}=\dfrac{2\cos2x\sin^22x(1+\cos2x)}{\cos4x\sin^22x}=\dfrac{2\cos2x(1+\cos2x)}{\cos4x}$

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QED

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2 years ago

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Tcecarenko [31]

Answer:

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Step-by-step explanation:

Let

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Solve the system by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

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see the attached figure

therefore

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