Twin brothers, Kenny and Isaiah, live in Small Town, USA where it snows an average of 55 days each winter. They take turns shoveling the walkway after each
snowfall. Kenny can shovel the walkway in 20 minutes, while it takes Isaiah only 15
minutes to shovel the same walkway. How many minutes will it take to shovel the
walkway if they work together? Express your answer as a decimal to the nearest
tenth.
Enter your answer

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Item 1 solve for s. s+24=90 −114 −66 66 114