MATHEMATICS MIDDLE SCHOOL

Jill is making lemonade. The original concentration was 25 mL of concentrate to 2 L of water. People found that too strong so she decreased the concentration to 20 mL of concentrate to 2 L of water. By what percentage did she decrease the concentrate?A) 2%
B) 3%
C) 5%
D) 20%

Answers

Answer 1

Answer: 100%= 25mls

20/25 x 100 = 80%

100%-80%= 20%

Answer 2

Answer:

Step-by-step explanation:

The answer is D)20%

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I need help with thisA DVD movie sells for $29 and the sales tax is 5.5%. What is the total cost of the movie to the nearest penny? Show your work to earn credit.

Answers

29×5.5=159.5 slide the decimal 2 places to the left, so you get 1.595. That rounds up to $1.60. So $29.00+$1.60=$30.60

first you turn the tax percent into a decimal, then multiply by 29 dollars.
the answer you get from multiplying you will add that to 29 $

Leroy's racing number is the difference between 11,023 and 10,090.what is it?

Answers

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2x-3y=8 solve for y I don't understand this at all can someone please help??

Answers

2x - 3y = 8

Subtract '2x' to both sides:

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If the answer says solve for y then it would be fine to have a second variable the answer would be $y= (2)/(3) x- (8)/(3)$

The length of a painting is 3 times it's width. its perimeter is 64 inches find the length

Answers

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Answers

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Last year, Austin, Texas received 23.5 inches of rainfall. This year, Austin received 21.2 inches of rainfall. Find the percent of decrease in the number of inches of rainfall. Round your answer to the nearest tenth of a percent, if necessary.

Answers

Let's consider that 23.5 is 100% of rainfall.
23.5 ..... 100 %
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Calculate x:
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Answer:

B 9.8

Step-by-step explanation:

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