Answer:
(x) =
Step-by-step explanation:
let d(x) = y and rearrange making x the subject, that is
2x - 4 = y ( add 4 to both sides )
2x = y + 4 ( divide both sides by 2 )
x =
Change y back into terms of x, so
(x ) =
The Shinkansen, the fastest train in Japan, traveled 75 kilometers in 0.25 hours. What was its speed in kilometers per hour?
1 answer:
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