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saw5 [17]
3 years ago
8

Erin is buying cupcakes for her birthday party. Each cupcake costs $1.50. How many guests can she invite if her budget is $80 an

d she has already spent $16 on paper cups and plates? By the way, Erin thinks that each guest will want two cupcakes to eat.
Mathematics
1 answer:
GuDViN [60]3 years ago
3 0

Answer:

About 21 People Can Go To Erin’s Party.

Step-by-step explanation:

Equation:

(80-16)= 1.5x*2

How To Solve It:

step 1: (80-16)= 1.5x*2

step 2: 64 =1.5x*2

step 3: 64=3x

step 4: 64/3=3x/3

Answer: About 21 People Can Go To Erin’s Party.

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Tamiku [17]

Green's theorem says the circulation of \vec F along the rectangle's border C is equal to the integral of the curl of \vec F over the rectangle's interior D.

Given \vec F(x,y)=2xy\,\vec\imath, its curl is the determinant

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So we have

\displaystyle\int_C\vec F\cdot\mathrm d\vec r=\iint_D-2x\,\mathrm dx\,\mathrm dy=-2\int_0^3\int_0^8x\,\mathrm dx\,\mathrm dy=\boxed{-192}

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3 years ago
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Answer:

Step-by-step explanation:

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