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Anastaziya [24]
2 years ago
10

A train travels at a constant rate of 30 miles per hour. how long will it take the train to travel 100 miles

Mathematics
2 answers:
Leno4ka [110]2 years ago
8 0

Answer:

it'll maybe take 3 in a half hours or so i don't know if i'm right .

Step-by-step explanation:

o-na [289]2 years ago
7 0

Answer:

3 hours and 20 min

Step-by-step explanation:

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Drove 50 km on 6 L of gasoline. Which proportion would help determine how far she can travel on a full 40 L tank of gasoline?
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Answer:

50 : 6 = x : 40 is the proportion


Step-by-step explanation:

50 : 6 = x : 40

x = 50 * 40 : 6

x = 333.33

--------------------------

check

50 : 6 = 333.33 : 40

8.33 = 8.33

The answer is good






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If the discriminant is 22, then the roots of the quadratic equation are ________________.
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Since the discriminant given has a value that is greater than zero, hence  the roots of the quadratic equation are real and distinct.

<h3>Discriminant of a quadratic equation</h3>

Quadratic equation is an equation that has a leading degree of 2. The discriminant is used to determine the nature of the equation

If D > 0 , the roots of the quadratic equation are real and distinct.

If D < 0 , the roots of the quadratic equation are complex

Since the discriminant given has a value that is greater than zero, hence  the roots of the quadratic equation are real and distinct.

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