amy can clean the elephant enclosure in 4 hours, but takes joel 6 hours. how long would it take them working together?
my answer : 24/10 = 2 4/10 hours
joanne mows the front yard in 40 minutes, while hope cam mow the same yard in 50 minutes. how long would it take them, working together with two mowers, to mow the yard?
my answer : 200/9 = 22 2/9 minutes
raul flew his plane 200 miles against the wind in the same time it took him to fly 400 miles with the wind. if the speed of the wind was 50 miles per hour, what was the average speed of his plane ?
my answer : 150 miles per hour
it takes carolyn 4 hours to type a final exam. it takes elise 3 hours to do the same job. how long would it take them, working together to do the typing?
my answer : 12/7 =1 5/7 hours
a swimming pool can be filled in 15 hours by pipe A alone and in 24 hours by pipe B alone. how long would it take to fill the pool if both pipes were working ?
my answer : 120/13 = 9 2/13 hours
if joe can service a car in the mechanic shop in 2 hours and harry can service the same car in 1 hour, how long would it take if they both service the car together?
my answer : 2/3
anne flew her plane 400 km with the wind in the same time it took her to go 200 km against the wind. the speed of the wind is 50 km per hour. find the speed of the plane in still air?
my answer : 150
at a given hour, two steamboats leave a city in the sane direction on a straight cana. one travels at 18 mph and the other travels at 25 mph. in how many hours will the boat be 70 miles apart?
my answer : 10 hours
my answer : 24/10 = 2 4/10 hours
joanne mows the front yard in 40 minutes, while hope cam mow the same yard in 50 minutes. how long would it take them, working together with two mowers, to mow the yard?
my answer : 200/9 = 22 2/9 minutes
raul flew his plane 200 miles against the wind in the same time it took him to fly 400 miles with the wind. if the speed of the wind was 50 miles per hour, what was the average speed of his plane ?
my answer : 150 miles per hour
it takes carolyn 4 hours to type a final exam. it takes elise 3 hours to do the same job. how long would it take them, working together to do the typing?
my answer : 12/7 =1 5/7 hours
a swimming pool can be filled in 15 hours by pipe A alone and in 24 hours by pipe B alone. how long would it take to fill the pool if both pipes were working ?
my answer : 120/13 = 9 2/13 hours
if joe can service a car in the mechanic shop in 2 hours and harry can service the same car in 1 hour, how long would it take if they both service the car together?
my answer : 2/3
anne flew her plane 400 km with the wind in the same time it took her to go 200 km against the wind. the speed of the wind is 50 km per hour. find the speed of the plane in still air?
my answer : 150
at a given hour, two steamboats leave a city in the sane direction on a straight cana. one travels at 18 mph and the other travels at 25 mph. in how many hours will the boat be 70 miles apart?
my answer : 10 hours
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amy can clean the elephant enclosure in 4 hours, but takes joel 6 hours. how long would it take them working together?
my answer : 24/10 = 2 4/10 hours
let x = no of hours for both to work together
x/4 + x/6 =1 . . . . . . common denominator is 12
5x = 12
x = 12/5
your answer is also correct
joanne mows the front yard in 40 minutes, while hope cam mow the same yard in 50 minutes. how long would it take them, working together with two mowers, to mow the yard?
my answer : 200/9 = 22 2/9 minutes
x/40 + x/50 = 1 . . . . . common denominator is 200
9x = 200
x = 200/9
same as your answer
my answer : 24/10 = 2 4/10 hours
let x = no of hours for both to work together
x/4 + x/6 =1 . . . . . . common denominator is 12
5x = 12
x = 12/5
your answer is also correct
joanne mows the front yard in 40 minutes, while hope cam mow the same yard in 50 minutes. how long would it take them, working together with two mowers, to mow the yard?
my answer : 200/9 = 22 2/9 minutes
x/40 + x/50 = 1 . . . . . common denominator is 200
9x = 200
x = 200/9
same as your answer