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svetoff [14.1K]
3 years ago
8

Two paperback books cost a total of

Mathematics
1 answer:
KengaRu [80]3 years ago
3 0

Answer:

20 dollars

Step-by-step explanation:

I think 20+20+20=60 then 60-40=20

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A vendor at a street fair sells popcorn in cones, all of height 9 inches. The
Tatiana [17]

Answer:

The sharing cone holds about 9 times more popcorn than the skinny cone.

Step-by-step explanation:

The volume of a cone is given by the following formula:

V = \frac{\pi r^{2}h}{3}

In which r is the radius and h is the height.

Two cones:

Both have the same height.

The sharing-size cone has 3 times the radius of the skinny-size cone.

Skinny:

radius r, height h. So

V_{sk} = \frac{\pi r^{2}h}{3}

Sharing size:

radius 3r, height h. So

V_{sh} = \frac{\pi (3r)^{2}h}{3} = \frac{9\pi r^{2}h}{3} = 3\pi r^{2}h

About how many times more popcorn does the sharing cone hold than the skinny cone?

r = \frac{V_{sh}}{V_{sk}} = \frac{3\pi r^{2}h}{\frac{\pi r^{2}h}{3}} = \frac{3*3\pi r^{2}h}{\pi r^{2}h} = 9

The sharing cone holds about 9 times more popcorn than the skinny cone.

3 0
3 years ago
Determine whether the system of equations below has one solution, infinitely many
Iteru [2.4K]
No solution because I know I’m right
6 0
2 years ago
Please help don't answer just for points please'<br><br><br><br><br>Zoom in to see clearer :)​
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I think it might be C but please wait for someone else to comment to confirm my answer :) have a beautiful day you are loved
8 0
2 years ago
Read 2 more answers
Graph the inequality on the number line. x≥−3 1/2
Ivan

Answer:

I've done this before my friend...

6 0
3 years ago
Please help em with this one plz
abruzzese [7]
The correct answer is y=6x^(2)-1

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