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Solve 2x+y=3 x+y=5 in substitution method

Plz a. s. a. p.the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse