an airplane is at an altitude of 34,125 ft. the plane descends at a rate of 1,975 ft/min. about how long does it take the plane
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the equilibrium point, is when Demand = Supply, namely, when the amount of "Q"uantity demanded by customers is the same as the Quantity supplied by vendors.
That occurs when both of these equations are equal to each other.
let's do away with the denominators, by multiplying both sides by the LCD of all fractions, in this case, 12.