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eduard
3 years ago
8

a video store has 20 copies of a movie that each rent for $3 a day. If 75% of these copies are rented on one and 90% of these co

pies rented the next day how much money was collected from renting this movie on both days
Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0

<u><em>Answer:</em></u>

Money collected from renting the movies on both days = $99

<u><em>Explanation:</em></u>

We are given that the total number of copies is 20 and that the rent of each is $3 a day

<u>1- On the first day:</u>

Number of copies rented = 75% of the number of copies

Number of copies rented = 0.75 * 20 = 15 copies

Money made from renting the copies on first day = 15 * 3 = $45

<u>2- On the second day:</u>

Number of copies rented = 90% of the number of copies

Number of copies rented = 0.9 * 20 = 18 copies

Money made from renting the copies on second day = 18 * 3 = $54

<u>3- Getting the total amount of money from renting:</u>

Total collected money on both days = 45 + 54 = $99

Hope this helps :)

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Find the total volume of the composite figure below. Round to the nearest thousandth.
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Answer:

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Step-by-step explanation:

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Where:

r - Radius of the circle of the right cone, in feet.

h - Height of the cone, in feet.

w - Width of the cuboid, in feet.

H - Height of the cuboid, in feet.

l - Length of the cuboid, in feet.

If we know that r = 10\,ft, h = 10\,ft, w = 20\,ft, H = 7\,ft and l = 18\,ft, then the volume of the composite figure is:

V = \frac{1}{3}\cdot \pi \cdot (10\,ft)^{2}\cdot (10\,ft) + (20\,ft)\cdot (7\,ft)\cdot (18\,ft)

V = \left(\frac{1000\pi}{3} + 2520\right)\,ft^{3}

V \approx 3567.198\,ft^{3}

The volume of the composite figure is approximately 3567.198 cubic feet.

3 0
3 years ago
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