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3 years ago

7

Pedro and Carmela are cleaning their kitchen. It takes Pedro 3 hours to clean the kitchen by himself, while Carmela can clean th

e kitchen in 2
hours. Which equation can be used to calculate how long it will take them to clean the kitchen if they work together?
o * + = 1
31 + 2 = 1

1 answer:

nlexa [21]3 years ago

6 0

Answer:o * + = 1

Step-by-step explanation:

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

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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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On her way to work each morning sophia purchase a small cup of coffee for 4.25 from the coffee shop

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-1 3/5 ÷-2/3 as a mixed number

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$\text{Hey there!}$

$-1\frac{3}{5}\div\frac{2}{3}$

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$\text{Problem becomes:}-\frac{8}{2}\div\frac{2}{3}$

$\text{Solve that, and you will get:}\frac{-4}{5}\div{\frac{3}{1}}$

$-4\times1=-4$

$5\times3=15$

$\rightarrow =\frac{-4}{15}$

$\boxed{\boxed{\boxed{\bf{Answer:\frac{-4}{15}}}}}}\checkmark$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{LoveYourselfFirst:)}$

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3) This table represents the price of milk for various years. What is the percent of increase from 1980 to 2010 1 Year Price 198

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124.375% increase

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