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kifflom [539]
2 years ago
11

The regular price of an item is s dollars. If the item is on sale for 25% off the regular price, which expression represents the

sale price, in dollars, of the item?
Mathematics
1 answer:
seraphim [82]2 years ago
8 0

Answer:

0.75s

Step-by-step explanation:

The expression would be 0.75s where 0.75 represents the cost of the item after the 25% sale, and s representing the regular cost of the item.

Hope this helps :)

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Wittaler [7]

Answer:

1 and 3 are both perpendicular to segment NY

Step-by-step explanation:

1. Find the slope of line NY

slope of NY = 5-(-7)/-11-5 = - 3/4

Any line that is perpendicular to NY should have a slope of the inverse of negative slope of NY.

2.Find the slope of perpendicular lines

the inverse of negative slope of NY = - (-4/3) = 4/3

3 0
3 years ago
At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 10 cubic feet per minute. The di
lawyer [7]

Answer:

0.0063 ft / min

Step-by-step explanation:

From the problem statement we have that the variation in volume with respect to time is equal 10, like this:

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Now, we are mentioned that the diameter of the base of the cone is approximately three times the altitude, therefore:

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V = (3/4) * Pi * h ^ 3

They ask us to calculate the change in height with respect to time, that is dh / dt

Therefore we derive both sides with respect to time, we have to:

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reorganizing for dh / dt, we have:

dh / dt = [4/9 * pi * (h ^ 2)] * dV / dt

Knowing that h is 15 and dV / dt is 10, we replace these values:

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0.0063 ft / min would be the change in height with respect to time.

4 0
3 years ago
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OleMash [197]

Answer:

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Step-by-step explanation:

I don't know for sure but I hope it's correct.

6 0
3 years ago
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4 0
2 years ago
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