title: Multiplying Columns by A Number in R using Tidy Approach
body: <p>Now that funs is "softly depreciated", I can't figure out this simple task: how would you multiply a range of columns by a constant ?!! In other words, how would you rewrite this using Tidy/DPLYR:</p>
  
  <p>data10x &lt;- mtcars%>% 
  mutate_at(vars(mpg:hp),funs(.*10)) </p>
  
  <p>I tried 
  data10x &lt;- mtcars %>% 
  mutate_at(vars(mpg:hp),~(.*10)) </p>
  
  <p>but it gives me an error. </p>
  
  <p>I must be losing my mind, but this has to be simple! Thank you!</p>