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3 years ago

If old reeses cost $6 for a 12 pack and new reeses cost $1/pack, by what percent did the cost of reeses increase?s

Mathematics

1 answer:

skad [1K]3 years ago

8 0

Answer:

Step-by-step explanation:

6 dollars for a 12 pack means that it was $0.50 each. now they cost a dollar per pack. it's a 50 cent increase, or a 100% percentage increase

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3 years ago

Solve the initial value problem: y'(x)=(4y(x)+25)^(1/2) ,y(1)=6. you can't really tell, but the '1/2' is the exponent

goblinko [34]

Answer:

$y(x)=x^2+5x$

Step-by-step explanation:

Given: $y'=\sqrt{4y+25}$

Initial value: y(1)=6

Let $y'=\dfrac{dy}{dx}$

$\dfrac{dy}{dx}=\sqrt{4y+25}$

Variable separable

$\dfrac{dy}{\sqrt{4y+25}}=dx$

Integrate both sides

$\int \dfrac{dy}{\sqrt{4y+25}}=\int dx$

$\sqrt{4y+25}=2x+C$

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Put C into equation

Solution:

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3 years ago