An ice sculpture is melting from the heat. Assuming its height changes by negative 2 over 25 meters every hour, what will be the change in the height after 5 hours?

negative 2 over 5 meters
negative 2 over 125 meters
2 over 125 meters
2 over 5 meters

Question

An ice sculpture is melting from the heat. Assuming its height changes by negative 2 over 25 meters every hour, what will be the change in the height after 5 hours?

negative 2 over 5 meters
 negative 2 over 125 meters
 2 over 125 meters
 2 over 5 meters

Buenos88 · Answer

So it decreases 2/25 meters in height every hour, and the question is asking you how much will it decrease in height after 5 hours. So you would take -2/25 and multiply that by the 5 hours. -2/25*5/1= -2*1/25*5= -2/125

jhonyy9 · Answer

@Buenos88 do you think it so ? yes this is true that decrease in 5 hours by (2/25)*5 = ? 
how you multiplie fraction with an integer ?

(1/x)*x = 1/x^2 in the way how you wrote it above - so you think that is true ?

prove it please so than you divide (1/x^2) by x you need getting 1/x

(1/x^2) / x = (1/x^2) * (1/x ) = 1/x^3 so what not equal 1/x

please correct your answer