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Experts say that 25% of all serious bike accidents involve head injuries and that of all head injuries, 80% are fatal. What percent of of all serious bicycle accidents involve fatal head injuries?

 Mar 8, 2020
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x = bike accidents

.25 x = bike accidents with serious head bonks

    80 % 0f these are fatal

         .80   *  .25 x  = fatal bike accidents

               .20 x = fatal bike accidents

                    20 % of bike accidents are fatal     Don't be stupid .....or dead....wear your brain bucket !!!!!

 Mar 8, 2020

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