A train goes 10 miles per hour. How far does it travel in 4 hours

Mathematics

1 answer:

iren [92.7K]3 years ago

8 0

Answer:

40 mph

Step-by-step explanation:

10 miles*4 hours = 40 miles

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Well... the segment FG = 4x + 3, the segment GH = 7x - 12, now, the

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thus, FG = GH
or

$\bf 4x+3=7x-12\implies 3+12=7x-4x\implies 15=3x
\\\\\\
\cfrac{15}{3}=x\implies \boxed{5=x}\\\\
-------------------------------\\\\
thus\qquad 
\begin{cases}
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4(5)+3\\
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------\\
\overline{GH}=7x-12\\
7(5)-12\\
23
\end{cases}\impliedby equal\ halves
\\\\\\
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\\\\\\
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