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BartSMP [9]
2 years ago
13

If anyone could help that would be great. Ty. 1) y=-81-4 4 12​

Mathematics
1 answer:
Rainbow [258]2 years ago
8 0

Answer:

j

Step-by-step explanation:

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The original price of a shirt was $20. It was decreased to $15 . What is the percent decrease of the price of this shirt.


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The absolute decrease is


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The percent decrease is the absolute decrease divided by the the original price (part/whole).


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Mary has a monthly salary of $1200. She spends $280 per month on food. What percent of her monthly salary does she spend on food?


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The part of her salary that is spent on food is $280 out of her monthly salary of $1200


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The price of a pair of trousers was decreased 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


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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 larger in percentage term?


Solution to Problem 4:


First decrease in percent


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part / whole = (100 - 80) / 100 = 0.20 = 20%

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