Old mcdonald purchased a pool with a capacity 100 gallons for his farm. one day, at 1: 00 p. m., he placed a hose onto the pool which filled it with water at a rate of 5 gal per hour. after 10 hours, horses and cows started drinking the water at a rate of 2 gal/hr. five hours after that, mr. mcdonald noticed the animals and placed a second hose in the pool which filled it at a rate of 4 gal/hr. when did mr. mcdonald have himself a pool full of water?

Abcd is a square. what is the measure of angle bac

An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?