Black ice is an ie covering on roads that is especially difficult to see. it is therefore extremely dangerous for drivers. if a car travelling 30 mph brakes suddenly on black ice, it will slide across the ice. the distance d (in feet) that the car will slide is related to the temperature t (in degrees celsius). for example, the car will slide a distance of 168 feet when the temperature is -3 degrees celsius, and the sliding distance increases 4 feet for every 1 degree decrease in temperature. write a linear equation for the sliding distance d in terms of the temperature t.

43lbs of tomatos cost $387. how much would 41lbs cost

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /

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