4 years ago

john bought a bicycle for $20 sold it for $30 rebought it for $40 and resold it for $50. How much money did he make or loose?

Mathematics

1 answer:

ValentinkaMS [17]4 years ago

7 0

He lost 50 dollars and earned 80 dollars

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Hill can make 2/5 a dozen cookies in 1/3 hour, what is his rate per hour

Setler [38]

Answer:1 1/5 dozen cookies a hour

Step-by-step explanation: hope it helps

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3 years ago

(x^2–x–4)multiplied by(x–5)

Sergio [31]

$(x-5)(x^2-x-4) =x^3-6x^2+x+20$

Step-by-step explanation:

Given polynomials are:

$x^2-x-4\\and\\x-5$

Both polynomials have to be multiplied. We will use distributive property for the said purpose

So,

$(x-5)(x^2-x-4)\\=x(x^2-x-4)-5(x^2-x-4)\\=x^3-x^2-4x-5x^2+5x+20$

Combining alike terms

$=x^3-x^2-5x^2-4x+5x+20\\=x^3-6x^2+x+20$

Hence,

$(x-5)(x^2-x-4) =x^3-6x^2+x+20$

Keywords: Polynomials, Multiplication

Learn more about polynomials at:

#LearnwithBrainly

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3 years ago

Sara missed 7 of 184 school days this year. Approximately what percent of school days was Sara present?

gayaneshka [121]

Answer:

B. 96%

Step-by-step explanation:

Sara only missed 7 days of 184 days this year meaning 184 - 7 = 177 and

177 is how many days she attended school, so to figure out percentage take the number of days she attended school and divide by the total amount of days in this year which is 184: 177/184 = 0.96195652173

then multiply by 100 to get percentage so approximately 96%.

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3 years ago

26 INCHES AS A FRACTION

ohaa [14]

Yes I think so if not am sorry

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3 years ago

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IrinaVladis [17]

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i cant awnser

Step-by-step explanation:

wheres the table....like i cant tell

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2 years ago