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Readme [11.4K]
3 years ago
13

Casey is making a flower arrangement with roses(r) and carnations(c). The cost of each rose is $0.50 and the cost of each carnat

ion is $0.10. The arrangement has a total of 80 flowers and the flower cost was $20. How many of each flower did Casey put in her arrangement?
Which system of equations matches the situation?
Mathematics
1 answer:
Zanzabum3 years ago
3 0
.5r+.1c=20 and r+c=80
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A triangle has 3 sides so, to find the perimeter times 0.75 by 3

You get 2.25
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By the chain rule,

\dfrac{\mathrm dw}{\mathrm dt}=\dfrac{\partial w}{\partial x}\dfrac{\mathrm dx}{\mathrm dt}+\dfrac{\partial w}{\partial y}\dfrac{\mathrm dy}{\mathrm dt}+\dfrac{\partial w}{\partial z}\dfrac{\mathrm dz}{\mathrm dt}

We have

\dfrac{\partial w}{\partial x}=\dfrac{2x}{x^2+y^2+z^2}
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\dfrac{\mathrm dw}{\mathrm dt}=\dfrac{2\left(49\sin t\cos t-81\cos t\sin t+36\tan t\sec^2t\right)}{49\sin^2t+81\cos^2t+36\tan^2t}
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3 years ago
Can somebody please help me ( picture above )
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Answer:

D. A number of books and their cost that is not possible with either subscription.

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Every point along these lines shows a price that could possibly be paid and a number of books that could be bought. The point where these two lines meet is where the amount of books borrowed and the price for those books is the same for both subscriptions.

Because point S is not at this intersection, nor is it on either of these lines, it is not possible to pay that price for that amount of books with either subscription.

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Answer negative 9 is the answer

Step-by-step explanation:

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y = 3/4 + 7

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we must simplify the fraction 6/8

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