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otez555 [7]
3 years ago
8

Mark can clean his father's office in 30 minutes. His younger sister Lynn can clean the office in 40 minutes. How long will it t

ake if they come together and clean the office
Mathematics
2 answers:
zhannawk [14.2K]3 years ago
7 0
If they each do half, it will take 35 minutes.
Elan Coil [88]3 years ago
4 0
10 minutes is the answer

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Find the slope of the line.
Morgarella [4.7K]

The slope:

m=\dfrac{\Delta y}{\Delta x}

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6 units down → -6

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8 0
3 years ago
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5) What is the median of the data? 5, 28, 16, 32, 5, 16, 48, 29, 5, 35
mixer [17]

Answer:

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Step-by-step explanation:

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The width A rectangle is 3 cm less then its length. The perimeter of the rectangle is 30 CM. Find The length and width of the re
Tema [17]

w = l - 3

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6 0
3 years ago
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Natali [406]

Answer:

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Step-by-step explanation:

First of all, we know that the initial velocity (v0) of the rock is 0 ft/s because the rock was dropped. We also know that the initial height of the rock is 200 ft because it was dropped at the top of the well which is 200 ft high. Plugging this information into our quadratic function we get h(t) = -16t² + 200.

Now we need to find the distance from the surface of the water to the bottom of the well. This distance is equal to the height of the rock at time equals 3 seconds. Therefore, all we need to do is find h(3) = -16(3)² + 200 = 56 ft.

4 0
3 years ago
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