Kimberly and Johannesburg are 460km/hour apart. A train covers the distance in 5 hours and 45 minutes. Determine the speed of th
1 answer:
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Step-by-step explanation:
Collect like terms and simplify
[tex] -10n+30n=-36-24 \\ 20n = -60 [/tex]
Divide both sides of the equation by 20
[tex] 20n/20 = -60/20 \\ n=-3 [/tex]