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pantera1 [17]
3 years ago
15

PLEASE HELP ASAP

Mathematics
1 answer:
Tanzania [10]3 years ago
3 0

Answer:

23 nickels / 31 nickels

Step-by-step explanation:

there are 12 quarters in $3 - 12 x 2 is 24. the number of nickels is 1 less than twice the number of quarters. therefore there are 23 nickels. however, there are ten nickels in $1 10 x 3 is 30. and looking at $3.18, one more nickel could fit into the 18 cents. so it would be 31 nickels. the question doesn't make sense. maybe its a trick question?

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alina1380 [7]
Fu/ac=mu/bc so 27/36=mu/24 so mu= 18
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3 years ago
Any help with this greatly appreciated.
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Put the equation in standard linear form.

x'(t) + \dfrac{x(t)}{t + 5} = 5e^{5t}

Find the integrating factor.

\mu = \exp\left(\displaystyle \int \frac{dt}{t+5}\right) = e^{\ln|t+5|} = t+5

Multiply both sides by \mu.

(t+5) x'(t) + x(t) = 5(t+5)e^{5t}

Now the left side the derivative of a product,

\bigg((t+5) x(t)\bigg)' = 5(t+5)e^{5t}

Integrate both sides.

(t+5) x(t) = \displaystyle 5 \int (t+5) e^{5t} \, dt

On the right side, integrate by parts.

(t+5) x(t) = \dfrac15 (5t+24) e^{5t} + C

Solve for x(t).

\boxed{x(t) = \dfrac{5t+24}{5t+25} e^{5t} + \dfrac C{t+5}}

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4 years ago
What is .07 times 1.22
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.07×1.22 = ?
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What is the answer for this -12n - (-13n)=
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Step-by-step explanation:

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