kika asked in 教育與參考考試 · 1 decade ago

# 英文數學!! ～急

How far does a bus travel in 4 hours at 55 mph? (Don't forget to include the label in your answer. e.g., mph, miles, hr, etc.)

What is the average rate for an airplane that flies 480 miles in 2 hours 30 minutes? (Don't forget to include the label in your answer. e.g., mph, miles, hr, etc.)

Fifty-six minutes is what part of an hour (reduced fraction) (Don't forget to include the label in your answer. e.g., mph, miles, hr, etc.)?

Update:

One day Eli set out for a trip across the lake on his motorboat at a rate of 8 miles per hour. Along the way the motor broke down. Eli rowed back to the dock at a rate of 2 miles per hour. He was gone for 5 hours. How far did Eli row?

Update 2:

Hint: Write two expressions using rate multiplied by time, let x be the time on the motorboat and 5-x be the time rowing. Set the expressions equal to each other, since the distance going and returning are the same.

Eli rowed_________ miles.

*和上面補充是一起的,因為內容太多

### 3 Answers

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• 1 decade ago
Favorite Answer

How far does a bus travel in 4 hours at 55 mph? (Don't forget to include the label in your answer. e.g., mph, miles, hr, etc.)

公車以55尺/小時行駛4小時總共多遠?(別忘了要有單位)

解答:55*4=220(miles)

What is the average rate for an airplane that flies 480 miles in 2 hours 30 minutes? (Don't forget to include the label in your answer. e.g., mph, miles, hr, etc.)

飛機在兩小時三十分飛了480呎的平均速度是多少?

解答:480/2.5=192(mph)

Fifty-six minutes is what part of an hour (reduced fraction) (Don't forget to include the label in your answer. e.g., mph, miles, hr, etc.)?

56分佔1小時多少部分(最簡分數)

解答:56/60=19/20

2009-09-23 12:07:07 補充：

56/60=14/15

2009-09-23 15:45:14 補充：

One day Eli set out for a trip across the lake on his motorboat at a rate of 8 miles per hour. Along the way the motor broke down. Eli rowed back to the dock at a rate of 2 miles per hour. He was gone for 5 hours. How far did Eli row?

Eli坐汽艇以8尺/小時的速度橫跨湖,中途汽艇壞了,Eli以2尺/小時的速度划回碼頭,前後她總共花了5小時,請問Eli划了多遠.

2009-09-23 15:45:28 補充：

Hint: Write two expressions using rate multiplied by time, let x be the time on the motorboat and 5-x be the time rowing. Set the expressions equal to each other, since the distance going and returning are the same.

提示:用兩條數學式,利用速度乘以時間,x代表坐汽艇的時間,5-x代表划船的時間,利用來回的距離一樣讓兩條數學式相等

2009-09-23 15:45:40 補充：

解答

8*x=2*(5-x)

8x=10-2x

x=1

8*x=8

Eli rowed____8___ miles.

Source(s): 自己, 自己, 自己, 自己
• joe
Lv 5
1 decade ago

How far does a bus travel in 4 hours at 55 mph? (Don't forget to include the label in your answer. e.g., mph, miles, hr, etc.)

55mph*4hr=220(miles) ans:220 miles

以每小時55英里的速度開了4小時，可以得到一共開了220英里

What is the average rate for an airplane that flies 480 miles in 2 hours 30 minutes? (Don't forget to include the label in your answer. e.g., mph, miles, hr, etc.)

480 miles/2.5 hr=192mph ans:192mph

2小時30分開了480英里，所以平均時速為192英里

Fifty-six minutes is what part of an hour (reduced fraction) (Don't forget to include the label in your answer. e.g., mph, miles, hr, etc.)?

56/60=14/15 ans:14/15

56分鐘是1小時的幾分之幾？

• 1 decade ago

(1)55 mile/ hr x 4 hr = 220 miles

(2)480 miles / 2.5 hr = 192 mph

(3)56 min / 60 min/hr = 14/15 hr

以上的回答希望對你有幫助！

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