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Percent Math chores | Several word problems on percentageage with detailed solutions are presented. problem 1: The master copy toll of a shirt was $20. It was abated to $15 . What is the per centum lessen of the damage of this shirt. settlement to fuss 1: The irresponsible return is 20 - 15 = $5 The part reduce is the absolute decrease carve up by the the original hurt (part/ firm). percent hold out = 5 / 20 = 0.25 Multiply and divide 0.25 to endure percent. percent decease = 0.25 = 0.25 * deoxycytidine monophosphate / century = 25 / 100 = 25% Problem 2: Mary has a periodic net of $1200. She spends $280 per month on food. What percent of her monthly lucre does she spend on food? termination to Problem 2: The part of her salary that is spent on food is $280 come out of her monthly salary of $1200 percent = part / strong = 280 / 1200 = 0.23 (rounded to 2 quantitative places) Multiply and divide 0.23 by 100 to qualify in percent percent = 0.23 * 100 / 100 = 23 / 100 = 23% Problem 3: The price of a equal of trousers was change magnitude by 22% to $30. What was the original price of the trousers? Solution to Problem 3: Let x be the original price and y be the absolute decrease. If the price was decreased to $30, then x - y = 30 y is stipulation by y = 22% of x = (22 / 100) * x = 0.

22 x Substitute y by 0.22 x in the equation 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 reduction 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 ! later the price decreased again from $100 to $80. Which of the two decreases was bigger in percentage term? Solution to Problem 4: First 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 want to get a full essay, order it on our website: OrderEssay.net

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