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KonstantinChe [14]
4 years ago
9

Sam can mow a lawn in 40 minutes. Vanessa can mow the same lawn in 60 minutes. How long does it take for both Sam and Vanessa to

mow the lawn if they are working together? Express your answer as a reduced fraction.
Mathematics
1 answer:
xxMikexx [17]4 years ago
5 0

Answer:

As a reduced fraction: \frac{120}{5} minutes, which is 24 minutes

Step-by-step explanation:

Sam's speed is 1 lawn in 40 minutes. Vanessa's speed is 1 lawn in 60 minutes. If they both work together, the total speed is:

\frac{1}{40}+\frac{1}{60}=\frac{1(3)}{40(3)}+\frac{1(2)}{60(2)}=\frac{3}{120}+\frac{2}{120}=\frac{5}{120}

Which means that the total speed would be 5 lawns in 120 minutes. To find the time it would take to mow one lawn at that speed, we need to invert that speed so we get minutes per lawn:

\frac{120}{5}=24minutes

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Which inference can be made from this two-way table? A. Being above 180 centimeters and having black hair are independent of eac
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Answer:

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Step-by-step explanation:

3 0
3 years ago
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A truck is 180 inches long. A car is 30% shorter than the truck. How long is the car?
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The car is 54 inches long.
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Limit xtens to 0 x^2logx^2 what is the ans of interminate forms?
GarryVolchara [31]

Rewrite the limit as

\displaystyle\lim_{x\to0}x^2\log x^2=\lim_{x\to0}\frac{\log x^2}{\frac1{x^2}}

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A system of equations consists of two lines. One line passes through (-1, 3) and (0, 1). The other line passes through (1, 4) an
Setler79 [48]
The equation of the line in its generic form is:
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the system has one solution
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