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2 years ago

For an upcoming concert, each customer may purchase up to 3 child tickets and 3 adult tickets. Let C be the

Mathematics

1 answer:

Rainbow [258]2 years ago

8 0

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Please someone right now please 10x23-9+90(23-9)

Burka [1]

Answer:

1481

Step-by-step explanation:

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1 year ago

Kirsten has to walk 2 3/4km to school. How far has she walked when she halfway? Give your answer in metres.

evablogger [386]

Answer:

375 m

Step-by-step explanation:

$\frac{3}{4} \times 1000 = 750$

From halfway

$\frac{750}{2} = 375$

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2 years ago

A NASA spacecraft measures the rate R of at which atmospheric pressure on Mars decreases with altitude. The result at a certain

AysviL [449]

Answer:

$R = 0.0000498 \frac{KJ}{ m m^3}=0.0000498 \frac{KJ}{m^4}=4.98x10^{-5}\frac{KJ}{m^4}$

Step-by-step explanation:

For this case we have the following value:

$R = 0.0498 \frac{Kpa}{Km}$

We can convert this first to $\frac{Kpa}{m}$ like this:

$R=0.0498 \frac{Kpa}{Km} *\frac{1km}{1000m}=0.0000498 \frac{Kpa}{m}$

Now we use the fact the the pressure is defined as $P =\frac{F}{A}$ , whre P is the pressure, F the force and A the area, so then $Kpa= \frac{KN}{m^2}$ and then we can replace this:

$R=0.0000498 \frac{KN}{m^3}$

Now from definition of work we know that $W= Fd$ where W is the work, F the force and d the distance, so then is equivalent $KN =\frac{KJ}{m}$

And if we replace this into the equation we got:

$R = 0.0000498 \frac{KJ}{ m m^3}=0.0000498 \frac{KJ}{m^4}=4.98x10^{-5}\frac{KJ}{m^4}$

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Step-by-step explanation: hope this helps

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