a train is 3/4 miles long. it's traveling upto a bridge at 39mph. the bridge is 1 1/2 miles long. at this speed, how long will it take the whole train to go completely over the bridge. show how u arrived at your answer...provide details to aid me understand the problem
2006-12-28 13:24:36 · 4 answers · asked by Me!!! 1 in Education & Reference ➔ Homework Help
add 3/4 mile ot the 1 1/2 mile bridge because you are measuring how long it takes for the last part of the train to cross. then see how long it takes to travel 2.25 miles at 39 mph. there is your answer.
2006-12-28 13:36:40 · answer #1 · answered by the real diehl 4 · 4⤊ 0⤋
1-1/2 min
1.5+.75=2.25
39/60=Speed per Min
.65per min * 2.25 length
Speed*Destance=
2006-12-28 21:40:17 · answer #2 · answered by Earth to Mars 5 · 2⤊ 0⤋
i'm so confused wit this problem. buh thanx for da answers ppl.
2006-12-28 22:23:29 · answer #3 · answered by jamalz 1 · 0⤊ 1⤋
wow.. i had this same question for my homework two weeks ago!!
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2006-12-28 21:31:25 · answer #4 · answered by ღbrownsugarღ 3 · 0⤊ 3⤋