Definition of wallpaper in the AudioEnglish.org Dictionary. Meaning of wallpaper. What does wallpaper mean? Proper usage and pronunciation (in phonetic transcription) of the word wallpaper. Information about wallpaper in the AudioEnglish.org dictionary, synonyms and antonyms.
1.8.7 Distance-time graphs: a mathematical story. Distance-time graphs are a means of replacing a description given in words by a mathematical description of the same event. What follows is a narrative account: that is, a description in the form of story about a bicycle ride. Read the story and then think about how you would use this account to produce a mathematical model of the ride in the form of a distance-time graph.
Average speed = total distance / total time. distance = speed* time d1 = 80km /h 30 min. = 80 30 /60 = 40 km d2 = 100 *12 / 60 = 20 km d3 = 40 *45 /60 = 30 km (time is divided by 60 to convert into hour) total distance d = 40+ 20 +30 = 90 km total time = time of traveling + time at rest = (30 + 12 + 45) +15 t = 102min.verage speed = total distance / total time. distance = speed* time d1 = 80km /h 30 min. = 80 30 /60 = 40 km d2 = 100 *12 / 60 = 20 km d3 = 40 *45 /60 = 30 km (time is divided by 60 to convert into hour) total distance d = 40+ 20 +30 = 90 km total time = time of traveling + time at rest = (30 + 12 + 45) +15 t = 102min.