Question

A company offers a rate of $.05 per minute. How would you find the unit rate per hour?

Answer 1

`\$0.05\ per\ minute=0.05\ \$/min\\\\1h=60min\Rightarrow1min=(1)/(60)h\\\\therefore\\\\0.05\ \$/min=0.05\cdot(\$)/((1)/(60)\ h)=0.05\cdot60\ \$/h=\boxed{3\ \$/h}`