Lily finished a task in 3/4 hour .ella finished it in 4/5 of time lily took. how long did ella take to finish the task?

Time taken by Ella is 0.6 hour

Solution:

Lily finished a task in hour

Ella finished it in of time Lily took

To find: time taken by Ella to finish the task

Let "L" be the time taken by Lily

Time taken by Lily = L =

From given statement,

Time taken by Ella to finish the task is of time Lily took

Therefore,

Time taken by Ella = of time taken by Lily

Thus time taken by Ella is 0.6 hour

the answer is d. 75%

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb