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Gelneren [198K]
3 years ago
14

How much will a train travel in 3/4 of an hour if the average speed is 50 mph?

Mathematics
2 answers:
slava [35]3 years ago
8 0
150/200 5x3=15+0 150 5x4=20+0=200

Aloiza [94]3 years ago
4 0
Since the train travels 50 miles in 1 hour, to find 3/4 of an hour:

3/4 * 50
75/2 miles

Hope this helps!
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Answer:

7

Step-by-step explanation:

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3 years ago
1/3x² + x+5/3x² = 1/9<br><br>HAHAHAHA......​
mr_godi [17]

Answer:

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This is because b² −4ac=1−4×5×3

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∴ No solution.

lol hehehe

7 0
2 years ago
Read 2 more answers
Please help math
Naddika [18.5K]
   
\displaystyle\\&#10;15(2a - 2) = 5(a^2 -1) \\  \\ &#10;30a - 30 = 5a^2-5\\\\&#10;-5a^2 + 30a -30 + 5 =0\\\\&#10;-5a^2 + 30a -25 =0 ~~~~~\Big| \times (-1) \\\\&#10;5a^2 - 30a +25 = 0~~~~~\Big| : 5 \\\\&#10;a^2 - 6a +5 = 0 \\  \\ &#10;a_{12}= \frac{-b\pm \sqrt{b^2-4ac}}{2a}= \frac{6\pm \sqrt{36-20}}{2}= \frac{6\pm \sqrt{16}}{2}=\frac{6\pm 4}{2}= \boxed{3\pm 2} \\  \\ &#10;a_1 = 3+ 2 = \boxed{5}\\\\&#10;a_2 = 3-2 = \boxed{1}



8 0
3 years ago
Read 2 more answers
I will mark you BRAINLIST please help with all 3 and show work on a paper please I need this thank you !!
o-na [289]
I hope you can understand this :)

8 0
3 years ago
Multiply 3/7 by the reciprocal of -3/14​
Alexandra [31]

Multiplying 3/7 by the reciprocal of -3/14,

\frac{3}{7} \times  \frac{14}{ - 3} \\  =  \frac{1}{1} \times  \frac{2}{ - 1} \\  =  \frac{2}{ - 1} \\  =  - 2

Hope it helps!!

7 0
3 years ago
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