Hi guys, i have this stupid maths homework and i think im too tired because i just dont get it.... It seem to be easy but im blocked..
prob 1-
A guy lost 1/3 of his money then played again and lost 1/3 of what remained. He lost again 1/3 a 3rd time and then a 4th time he lost 1/3 again. At the end he have 32$, how much he had at the begining?
prob 2-
A rectangle has a perimeter of 500 meters and the area is 14400 m2 .... i have to find the lenght of the sides. I need to put this in an equation like f(x)= ......
2x+2y=500
x*y=14400 right? well how come i get stuck at 14400=250-x
prob 3-
we can cover a floor with 2000 tile of a certain size but if they where longer and larger of 1 cm, we would only need 1280. Find the dimension of the tile.
prob 1-
A guy lost 1/3 of his money then played again and lost 1/3 of what remained. He lost again 1/3 a 3rd time and then a 4th time he lost 1/3 again. At the end he have 32$, how much he had at the begining?
prob 2-
A rectangle has a perimeter of 500 meters and the area is 14400 m2 .... i have to find the lenght of the sides. I need to put this in an equation like f(x)= ......
2x+2y=500
x*y=14400 right? well how come i get stuck at 14400=250-x
prob 3-
we can cover a floor with 2000 tile of a certain size but if they where longer and larger of 1 cm, we would only need 1280. Find the dimension of the tile.