You time someone completing a single task the first time at 100 minutes and the fourth time they do the task it takes 81 minutes. You should use a 90 percent learning curve to estimate the length of time this worker will take to complete this task in the future.

given statement is false

Step-by-step explanation:

given data

first time = 100 minutes

fourth time  = 81 minutes

solution

as here time for 1st unit is multiply by learning percentage for obtain time for 2nd unit

so here time for 2nd unit divide by time of 1st unit so 100 is here learning curve

so × 100 = 81 percent

but it say 90 percent learning curve

so given statement is false

in 4 days he will run   12/14

step-by-step explanation:

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.