find equivalent discount equal to two successive discount 25% and 15%.
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Step-by-step explanation:
after the first discount of 25 % on y we are left with 0.75 y.
after the second discount of 15 % on 0.75 y we are left with 0.85(0.75 y) = 0.6375 y.
the total discount would be 1 - 0.6375 = 0.3625 = 36.25 %.
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