A radiator containing a mixture of water and antifreeze was found to have 30% antifreeze. What percent of water must be evaporated so that the radiator will then contain 35% antifreeze? Round your answer to the nearest tenth.

Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if