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slavikrds [6]
3 years ago
12

A train travels at a constant speed of 35 miles per hour how long does it take the train to travel 490 miles

Mathematics
1 answer:
charle [14.2K]3 years ago
5 0
We have to write a proportion. We put 35 over 60 to show that 35 miles can go in every 60 minutes. Next to it we write another fraction and put 490 over x because we are trying to find how many MINUTES first. we multiply 490 by 60 which is 29400. Now we divide that by 35. we get 840 minutes. Now we convert this into hours by dividing it by 60 because there are 60 minutes in an hour. 840 divided by 60 is 14 hours. The answer is 14 hours.
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Please help me on my math homework also please note that the answer in red is wrong. (This is serious)
8090 [49]

Angles LNM and MNI are supplementary, so their measures sum to 180°. This means

∡ LNM + ∡ MNI = 180°

∡ LNM = 180° - (19<em>x</em> + 2)°

The sum of the interior angles of any triangle is also 180°, so

∡ LNM + ∡ NML + ∡ MLN = 180°

(180° - (19<em>x</em> + 2))° + (15<em>x</em> - 2)° + (6<em>x</em>)° = 180°

Solve for <em>x</em> (I'll omit the degree symbol):

180 - 19<em>x</em> - 2 + 15<em>x</em> - 2 + 6<em>x</em> = 180

2<em>x</em> - 4 = 0

2<em>x</em> = 4

<em>x</em> = 2

Then ∡ MNI = (15•2 - 12)° = (30 - 12)° = 18°.

7 0
3 years ago
If total deductions on a yearly salary of $28 600 amounted to 16 2/3%, how much was deducted?
antiseptic1488 [7]
Simply multiply the total amount by the percentage deducted in decimals.

(28,600) * (0.16667) = $4,799.67
8 0
4 years ago
Find the 11th term of the arithmetic sequence -2x,-8,-9x,-11,-16x,-14
Valentin [98]

Answer:

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that means the nth term is equal to the first term plus n-1 times the common difference.

5 0
3 years ago
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Vadim26 [7]

Answer:

3

Step-by-step explanation:

\sqrt[3]{27} =\sqrt[3]{(3)(3)(3)} =\sqrt[3]{(3)^3}= 3

<h2>BRAINLIEST please if this helped!</h2>
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2 years ago
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Answer:

Step-by-step explanation:

Identify the slope, m. This can be done by calculating the slope between two known points of the line using the slope formula.

or

Find the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.

8 0
3 years ago
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