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Answered

If the speedometer reading is 60mph on your car and you have changed the factory-installed tires(circumference of 95 inches) to bigger tires(circumference of 100 inches), you are actually traveling _____ mphchoices:A. 63B. 57C. 69.93D. 54.17

Answer :

we can use cross-multiplication

[tex]\begin{gathered} 95\longrightarrow60 \\ 100\longrightarrow x \end{gathered}[/tex]

where x is the real speed

[tex]\begin{gathered} x=\frac{100\times60}{95} \\ x=63.15 \end{gathered}[/tex]

the solution is 63mph

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