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Debra has ridden 6 miles of a bike course. The course is 15miles long. What percentage of the course has Debra ridden so far

Sagot :

From the question

Miles covered for bike course = 6 miles

Total miles of course = 15 miles

In percentage, this becomes

Let z = percentage of miles covered

Hence

[tex]z=\frac{\text{miles covered}}{Total\text{ miles}}\times100\text{\%}[/tex]

Substitute in the values to get

[tex]z=\frac{6}{15}\times100\text{\%}[/tex]

Simplify:

[tex]\begin{gathered} z=\frac{2}{5}\times100\text{\%} \\ z=2\times20\text{\%} \\ z=40\text{\%} \end{gathered}[/tex]

Therefore, the percentage of the course Debra has ridden so far is 40%