a large pipe can fill a pool in six hours, and a smaller pipe can fill the same
pool in nine hours. a drain, which can empty the pool in twelve hours, is
inadvertently left open while the pool is being filled. how long
would it take the two pipes to fill the pool with the drain open?

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answer

a) the midrange of the data set shown is 85.5

step by step explanation

let's find the midrange.

the midrange is nothing but add the greatest value and the least value, then divide it by 2.

here the greatest value = 99

the least value = 72

midrange = (99 + 72)/2

= 171/2

midrange = 85.5

you.

step-by-step explanation:

a bicycle manufacturer uses the given expression to model the monthly profit from sales of a new model of bicycle, where x is the selling price of one bicycle, in dollars.