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3 years ago

BRAINLIEST AND 20 POINTS FOR CORRECT ANSWER WITH EXPLAINATION!

Mathematics

1 answer:

jeyben [28]3 years ago

8 0

The formula for t=s/(v₁+v₂), and the value of t is 2 hours.

Step-by-step explanation:

The question is on relative speed.

For the two trains moving towards each other , the relative speed is the sum of their speeds.

Distance between the cities= s miles

Train 1 : speed is v₁ mph

Train 2: speed is v₂ mph

Time of meeting= t

Applying formula for speed, speed =distance/time

Time of meeting= Distance/relative speed

t=s/(v₁+v₂)

Given s=310, v₁=75 and v₂=80, then finding t

t=310/(75+80)

t=310/155 = 2 hrs

Learn More

Relative Speed : brainly.com/question/13080364

Keyword : speed

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lilavasa [31]

Answer:

The other leg X = 8m

Step-by-step explanation:

As per Pythagorean theorem-

Square of hypotenuse = sum of square of other two sides of the triangle

Substituting the given values in above equation, we get -

$10^2 = 6^2 + X^2\\100 - 36 = X^2\\X^2 = 64\\X = 8$ m

The other leg X = 8m

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3 years ago

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AleksandrR [38]

Answer:

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Step-by-step explanation:

Given :

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n(Mexican) = 19

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Where, 4 = sample size

Expected value, E = 23

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3 years ago

Why is ten a good number ?

timurjin [86]

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Aadya and Ethan like playing with remote-control cars. There's a straight track at the

e-lub [12.9K]

The distance between the two cars is now 320 yards.

<h3 /><h3><u>Distances</u></h3>

To determine what is the distance between the two cars now if they did not collide the following calculation must be performed:

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500 - 95 - 85 = X
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Therefore, the distance between the two cars is now 320 yards.

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3 years ago

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HACTEHA [7]

Answer:

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Step-by-step explanation:

$3.4 \: miles = 1 \: day \\ 17.34 \: miles \: = x \: days$

Cross Multiply

$3.4x = 17.34$

Divide both sides of the equation by 3.4

$\frac{3.4x}{3.4} = \frac{17.34}{3.4}$

$x = 5.1$

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3 years ago

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