2 years ago

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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2 years ago

The ratio of boys to girls is 3:2. If there are a total of 20 children in Mrs. Nelson's class, how many are girls?

Scilla [17]

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2 years ago

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siniylev [52]

Answer:

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Step-by-step explanation:

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2 years ago

A hyperbola centered at the origin has a vertex at (0,−40) and a focus at (0, 41).

aniked [119]

$\frac{(x-h)^{2} }{a^{2} } - \frac{(y - k)^{2} }{b^{2} } = 1$

$\frac{(x-0)^{2} }{40^{2} } - \frac{(y - 0)^{2} }{b^{2} } = 1$

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40² + b² = 41²

b² = 41² - 40²

b² = 1681 - 1600

b² = 81

b = 9

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y-intercept (b) = 0 since the center is at the origin

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3 years ago

Read 2 more answers

What is −14 − (+6) =

zepelin [54]

Answer:

-20

Step-by-step explanation:

it basically -14-6

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2 years ago