GRAHAM WALKED TO SCHOOL AT AN AVERAGE SPEED OF 3 MILES AN HOUR AND JOGGED BACK ALONG THE SAME ROUTE AT 5 MILES AN HOUR.IF HIS TOTAL TRAVELLING TIME WAS 1 HOUR,what was the total number of miles in the round tripA,3 B,3+1/8 C,3+3/4 D,4 E,5

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GRAHAM WALKED TO SCHOOL AT AN AVERAGE SPEED OF 3 MILES AN HOUR AND JOGGED BACK ALONG THE SAME ROUTE AT 5 MILES AN HOUR.IF HIS TOTAL TRAVELLING TIME WAS 1 HOUR,what was the total number of miles in the round tripA,3 B,3+1/8 C,3+3/4 D,4 E,5

GRAHAM WALKED TO SCHOOL AT AN AVERAGE SPEED OF 3 MILES AN HOUR AND JOGGED BACK ALONG THE SAME ROUTE AT 5 MILES AN HOUR.IF HIS TOTAL TRAVELLING TIME WAS 1 HOUR,what was the total number of miles in the round tripA,3 B,3+1/8 C,3+3/4 D,4 E,5
GRAHAM WALKED TO SCHOOL AT AN AVERAGE SPEED OF 3 MILES AN HOUR AND JOGGED BACK ALONG THE SAME ROUTE AT 5 MILES AN HOUR.IF HIS TOTAL TRAVELLING TIME WAS 1 HOUR,what was the total number of miles in the round trip
A,3 B,3+1/8 C,3+3/4 D,4 E,5

GRAHAM WALKED TO SCHOOL AT AN AVERAGE SPEED OF 3 MILES AN HOUR AND JOGGED BACK ALONG THE SAME ROUTE AT 5 MILES AN HOUR.IF HIS TOTAL TRAVELLING TIME WAS 1 HOUR,what was the total number of miles in the round tripA,3 B,3+1/8 C,3+3/4 D,4 E,5
答案是C设走去得时间是X 3x=5(1-x) 解出x 然后你就会了吧 答案是C 祝所有备考Sat的人（当然包括我^_^）全都RP爆发 加油!

GRAHAM WALKED TO SCHOOL AT AN AVERAGE SPEED OF 3 MILES AN HOUR AND JOGGED BACK ALONG THE SAME ROUTE AT 5 MILES AN HOUR.IF HIS TOTAL TRAVELLING TIME WAS 1 HOUR,what was the total number of miles in the round tripA,3 B,3+1/8 C,3+3/4 D,4 E,5 Alexander Graham graham是什么意思? l walked to school.对walked to school提问 1.How does Graham feel before he calls Linda?2.How many people answered Graham’s phone?Linda is talking with her friend,Graham,on the phone.Graham is sad because he does not know what to do.Well,you,can go and draw some pictures,Linda says.Graham He walked to and from We walked back to the hotel 对walked提问 yesterday he walked to home改错 Lily walked over to stand by Rose I walked up to lauren怎么翻译 Danny walked to school.如何翻译? GRAHAM TURNER音标是什么 graham的翻译 graham怎么读 They walked to work,可以写成They walked go to work吗?为什么呢? SCH B BUTT-WELDING ELBOW SCH STD TO 80 & SCH STD OF 90º LONG RANGECONCENTRIC REDUCTION SCH STD TO 80 AND EXENTRIC是啥意思?flange 法兰产品上的 they walked until they come to(came to) a river