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3 years ago

If the value of 6 coins is $0.56, what are the coins?

Mathematics

1 answer:

arsen [322]3 years ago

8 0

Answer:

1 quarter, 2 dimes, 2 nickels, and 1 penny.

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Which expression is equivalent to 7- 3x +2?

Colt1911 [192]

Answer: 9-3x

Step-by-step explanation:

You add like terms

don't look at the 3x for now

positive 7 + positive 2 = 9

there is a negative sign next to 3x

9 goes first so

9 - 3x

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3 years ago

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2 years ago

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2 years ago

Let A be the area of a circle with radius r. If dr/dt=3, find dA/dt when r=2.

astraxan [27]

$\bf \textit{area of a circle}=A=\pi r^2
\\\\\\
\cfrac{dA}{dt}=\pi \cdot 2r^1\cdot \cfrac{dr}{dt}\implies \cfrac{dA}{dt}=\pi \cdot 2r\cdot \cfrac{dr}{dt}\quad 
\begin{cases}
r=2\\
\frac{dr}{dt}=3
\end{cases}
\\\\\\
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3 years ago

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Simora [160]

I’m not sure I’m going to look for it on the internet for you buddy because I don’t know yet

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3 years ago

If the value of 6 coins is $0.56, what are the coins?​

If the value of 6 coins is $0.56, what are the coins?