Charlie and Lily go on a 24 km run. They both usually run at 9 km/h. If Charlie runs at 2/3 his usual running speed, and Lily runs at 4/3 times her usual speed, how many more hours does it take Charlie to complete the run than it takes Lily to complete the run?
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Charlie and Lily go on a 24 km run. They both usually run at 9 km/h. If Charlie runs at 2/3 his usual running speed, and Lily runs at 4/3 times her usual speed, how many more hours does it take Charlie to complete the run than it takes Lily to complete the run?
Charlie and Lily go on a 24 km run. They both usually run at 9 km/h. If Charlie runs at 2/3 his usual running speed, and Lily runs at 4/3 times her usual speed, hơ many more hours does it take Charlie to complete the run than it take Lily to complete the run ?
charlie and lily go on a 24km run. they both usually run at 9 km/h. If charile runs at 2/3 his usual running speed, and Lily runs at 4/3 times her usual speed , how many more hours does it take charlie to complete the run than it takes lily to complete the run .
* dịch và làm giúp mink nha . mai mình thi rồi !
dịch:
charlie và lily chạy 24km. Họ đều chạy với vận tốc 9km/h. Nếu charlie chạy với vận tốc = 2/3 tốc độ chạy bình thường và lily chạy với vận tốc = 4/3 lần tốc độ bình thường của cô ấy thì cần bao nhiêu giờ để charlie và lily về đến đích . ( chỗ cuối ruts gọn 1 chút )
giải : k biets có đúng hay k ?!
2/3 vân tốc của charlie là: 9 x 2/3 = 6 (km/h)
4/3 _________ lily là : 9 x 4/3 =12(km/h)
số thời gian để charlie cán đích là : 24 : 6 = 4 (giờ)
_____________lily cán đích là : 24 : 12 = 2 (giờ)
đ/s : charlie : 4 giờ; lily : 2 giờ
tk mình nha! đi mà
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Charlie và Lily chạy trên 1 đoạn đường dài 24 km . Cả hai đều chạy với tốc độ 9 km / h. Nếu Charlie chạy bình thường với tốc độ 2/3 , và Lily chạy gấp 4/3 lần so với tốc độ của mình, sẽ mất bao nhiêu giờ nữa để Charlie hoàn thành cuộc chạy hơn Lily
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How fast is Anna going if she runs 8 miles in the park in only 2 hours?Answer: mile/hour.Question 2How far will Mary travel if she rides her motorbike for 24 minutes at a speed of 75 miles/hour?Answer: miles. Question 3:Yesterday Peter roller skated for 2.5 hours at a speed of 6 km/h. How many kilometers did he skate?Answer: km. Question 4:How fast is Jack going if the train he is on travels 20 miles in just 6 minutes? Answer: miles/hour. Question 5The area of a rectangle ABCD is . Given a r...
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How fast is Anna going if she runs 8 miles in the park in only 2 hours?
Answer: mile/hour.
Question 2
How far will Mary travel if she rides her motorbike for 24 minutes at a speed of 75 miles/hour?
Answer: miles.
Question 3:
Yesterday Peter roller skated for 2.5 hours at a speed of 6 km/h. How many kilometers did he skate?
Answer: km.
Question 4:
How fast is Jack going if the train he is on travels 20 miles in just 6 minutes?
Answer: miles/hour.
Question 5
The area of a rectangle ABCD is . Given a random point E inside of ABCD.Find the total area of triangles AED and BEC.
Answer:
Question 6:
The distance between 2 trees is 300 meters. It will take a bird 30 seconds to fly between these 2 trees. How fast is the bird in kilometer per hour?
Answer: km/h.
Làm thế nào nhanh chóng được Anna đi nếu cô ấy chạy 8 dặm trong công viên chỉ trong 2 tiếng đồng hồ?
Trả lời: dặm / giờ.
Câu hỏi 2
Làm thế nào đến nay Mary sẽ đi du lịch nếu cô cưỡi xe máy của mình cho 24 phút ở tốc độ 75 dặm / giờ?
Trả lời: dặm.
Câu hỏi 3:
Hôm qua giày trượt Peter đũa cho 2,5 giờ với tốc độ 6 km / h. Có bao nhiêu cây số anh ấy trượt?
Trả lời: km.
Câu hỏi 4:
Làm thế nào nhanh chóng được Jack đi nếu tàu ông là những chuyến đi 20 dặm chỉ trong 6 phút?
Trả lời: dặm / giờ.
Câu hỏi 5
Các khu vực của một hình chữ nhật ABCD là. Cho một điểm E ngẫu nhiên bên trong của ABCD.Tính tổng diện tích của các tam giác AED và BEC.
Câu trả lời:
Câu hỏi 6:
Khoảng cách giữa 2 cây là 300 mét. Nó sẽ mất một con chim 30 giây để đi giữa 2 cây. Nhanh như thế nào là con chim trong cây số một giờ?
Trả lời: km / h.
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Đây là toán tiếng anh phải ko? Viết tiếng việt cho đễ đọc
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Mr.Joseph drives car from A to B at a constant speed. If the speed of the car is increased by 20%, it takes him one hour less than the usual time. If he drives at the constant speed for the first 100km before increasing the speed by 30%, it also takes him one hour less than the usual. The distance of AB is ..........km.
Gọi S là quãng đường
v là vận tốc
t là thời gian Mr.J đi thường ngày
=>\(\dfrac{S}{120\%v}=t-1\)
\(\dfrac{100}{v}+\dfrac{S-100}{130\%v}=t-1\)
=>\(\dfrac{S}{120\%v}=\dfrac{100}{v}+\dfrac{S-100}{130\%v}\)
<=>\(\dfrac{130S}{156v}=\dfrac{15600+120S-12000}{156v}\)
<=>\(10S=3600\)
<=>\(S=360\)
Xong rầu đó khỏi cảm ơn 
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Question 1Bob drove from City P to City Q. He traveled the first 36km at an average speed of 54km/h. He traveled the remaining 96km at a average speed of 72km/h. Find his average speed for the whole trip.Answer: km/h.Question 2John drove from Town A to Town B in 5 hours. His average speed for the first 3.5 hours was 64km/h. His average speed for the last 1.5 hours was 60km/h. What was the total distance he traveled? Answer: km.Question 3A car traveled at 50km/h for 2 hours and at 60km/h for 3 ho...
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Question 1
Bob drove from City P to City Q. He traveled the first 36km at an average speed of 54km/h. He traveled the remaining 96km at a average speed of 72km/h. Find his average speed for the whole trip.
Answer: km/h.
Question 2
John drove from Town A to Town B in 5 hours. His average speed for the first 3.5 hours was 64km/h. His average speed for the last 1.5 hours was 60km/h. What was the total distance he traveled?
Answer: km.
Question 3
A car traveled at 50km/h for 2 hours and at 60km/h for 3 hours. What is the car’s average speed?
Answer: km/h
Question 1:66 km/h
Question 2:314 km
Question 3:200/9 km/h
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Question 1:66 km/h
Question 2:314 km
Question 3:56 km/h
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0.6 hour minutes.Question 2:51 hours days(Write your answer by decimal in the simplest form)Question 3:12 hours 24 minutes 2 hours.(Write your answer by decimal in the simplest form)Question 4:5 minutes 27 seconds: 3 seconds.Question 5:How far will Mary travel if she rides her motorbike for 24 minutes at a speed of 75 miles/hour?Answer: miles. Question 6:How fast is Anna going if she runs 8 miles in the park in only 2 hours?Answer: mile/hour.Question 7:How fast is Jack going if the tr...
Đọc tiếp
0.6 hour = minutes.
Question 2:
51 hours = days
(Write your answer by decimal in the simplest form)
Question 3:
12 hours 24 minutes 2 = hours.
(Write your answer by decimal in the simplest form)
Question 4:
5 minutes 27 seconds: 3 = seconds.
Question 5:
How far will Mary travel if she rides her motorbike for 24 minutes at a speed of 75 miles/hour?
Answer: miles.
Question 6:
How fast is Anna going if she runs 8 miles in the park in only 2 hours?
Answer: mile/hour.
Question 7:
How fast is Jack going if the train he is on travels 20 miles in just 6 minutes?
Answer: miles/hour.
Question 8:
Yesterday Peter roller skated for 2.5 hours at a speed of 6 km/h. How many kilometers did he skate?
Answer: km.
Question 9:
The distance between 2 trees is 300 meters. It will take a bird 30 seconds to fly between these 2 trees. How fast is the bird in kilometer per hour?
Answer: km/h.
Question 10:
The area of a rectangle ABCD is . Given a random point E inside of ABCD.Find the total area of triangles AED and BEC.
Answer:
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Question 1:51 hours days(Write your answer by decimal in the simplest form)Question 2:5 minutes 27 seconds: 3 seconds.Question 3:12 hours 24 minutes 2 hours.(Write your answer by decimal in the simplest form)Question 4:0.6 hour minutes.Question 5:How fast is Anna going if she runs 8 miles in the park in only 2 hours?Answer: mile/hour.Question 6:Yesterday Peter roller skated for 2.5 hours at a speed of 6 km/h. How many kilometers did he skate?Answer: km. Question 7:How fast is Jack goi...
Đọc tiếp
Question 1:
51 hours = days
(Write your answer by decimal in the simplest form)
Question 2:
5 minutes 27 seconds: 3 = seconds.
Question 3:
12 hours 24 minutes 2 = hours.
(Write your answer by decimal in the simplest form)
Question 4:
0.6 hour = minutes.
Question 5:
How fast is Anna going if she runs 8 miles in the park in only 2 hours?
Answer: mile/hour.
Question 6:
Yesterday Peter roller skated for 2.5 hours at a speed of 6 km/h. How many kilometers did he skate?
Answer: km.
Question 7:
How fast is Jack going if the train he is on travels 20 miles in just 6 minutes?
Answer: miles/hour.
Question 8:
How far will Mary travel if she rides her motorbike for 24 minutes at a speed of 75 miles/hour?
Answer: miles.
Question 9:
The area of a rectangle ABCD is . Given a random point E inside of ABCD.Find the total area of triangles AED and BEC.
Answer:
Question 10:
The distance between 2 trees is 300 meters. It will take a bird 30 seconds to fly between these 2 trees. How fast is the bird in kilometer per hour?
Answer: km/h.
Question 1:5 minutes 27 seconds: 3 seconds.Question 2:51 hours days(Write your answer by decimal in the simplest form)Question 3:12 hours 24 minutes 2 hours.(Write your answer by decimal in the simplest form)Question 4:0.6 hour minutes.Question 5:How far will Mary travel if she rides her motorbike for 24 minutes at a speed of 75 miles/hour?Answer: miles. Question 6:How fast is Jack going if the train he is on travels 20 miles in just 6 minutes? Answer: miles/hour. Question 7:Yesterday...
Đọc tiếp
Question 1:
5 minutes 27 seconds: 3 = seconds.
Question 2:
51 hours = days
(Write your answer by decimal in the simplest form)
Question 3:
12 hours 24 minutes 2 = hours.
(Write your answer by decimal in the simplest form)
Question 4:
0.6 hour = minutes.
Question 5:
How far will Mary travel if she rides her motorbike for 24 minutes at a speed of 75 miles/hour?
Answer: miles.
Question 6:
How fast is Jack going if the train he is on travels 20 miles in just 6 minutes?
Answer: miles/hour.
Question 7:
Yesterday Peter roller skated for 2.5 hours at a speed of 6 km/h. How many kilometers did he skate?
Answer: km.
Question 8:
How fast is Anna going if she runs 8 miles in the park in only 2 hours?
Answer: mile/hour.
Question 9:
The area of a rectangle ABCD is . Given a random point E inside of ABCD.Find the total area of triangles AED and BEC.
Answer:
Question 10:
The distance between 2 trees is 300 meters. It will take a bird 30 seconds to fly between these 2 trees. How fast is the bird in kilometer per hour?
Answer: km/h.