in a race, 19 out of 50 runners finished in fewer than 30 minutes. what percent of the runners finished in fewer than 30 minutes? Write and equivalent fraction to find the percent.

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

What is 20+(5 x 2/5 )+ 3 show your work

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours