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Percent Math chores | several(prenominal) word jobs on invest with detailed solutions are presented. paradox 1: The superior monetary value of a shirt was $20. It was abated to $15 . What is the per centum lessen of the damage of this shirt. issue to difficulty 1: The unconditional return is 20 - 15 = $5 The spark off come is the absolute fall separate by the the schoolmaster equipment casualty ( wear/ firm). pct strangle = 5 / 20 = 0.25 Multiply and discriminate 0.25 to endure percent. percent decease = 0.25 = 0.25 * deoxycytidine monophosphate / coulomb = 25 / coke = 25% puzzle 2: Mary has a periodical net of $long hundred0. She spends $280 per month on feed. What percent of her monthly salary does she spend on food? dissolving agent to Problem 2: The part of her salary that is spent on food is $280 come out of her monthly salary of $ cxx0 percent = part / whole = 280 / 1200 = 0.23 (rounded to 2 decimal fraction places) Multiply and divide 0.23 by deoxycytidine monophosphate to qualify in percent percent = 0.23 * 100 / 100 = 23 / 100 = 23% Problem 3: The expense of a pair of trousers was fall by 22% to $30. What was the original worth of the trousers? firmness of purpose to Problem 3: allow x be the original price and y be the absolute decrease. If the price was decreased to $30, then x - y = 30 y is presumption by y = 22% of x = (22 / 100) * x = 0.

22 x Substitute y by 0.22 x in the comparability x - y = 30 and solve for x which the original price. x - 0.22 x = 30 0.78 x = 30 x = $38.5 Check the solution to this problem by simplification the origonal price found $38.5 by 22% and see if it gives $30. Problem 4: The price of an item changed from $120 to $100. Then subsequently the price decreased again from $100 to $80. Which of the two decreases was larger in percentage term? Solution to Problem 4: send-off decrease in percent part / whole = (120 - 100) / 120 = 0.17 = 17% Second decrease in percent part / whole = (100 - 80) / 100 = 0.20 = 20% The second decrease was larger in percent term. The...If you deficiency to get a full essay, order it on our website: Ordercustompaper.com

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