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Harlamova29_29 [7]
3 years ago
14

Ms. Li Spent $840 on a vacation. she spent 2/3 of the amount on a train ticket and a 1/2 of the remaining amount on food.how muc

h did she spend on the ticket and food all together
Mathematics
1 answer:
nikitadnepr [17]3 years ago
5 0
She spent $700 on the train ticket and food. She has $140 left
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Nick bought 2.5 pounds of popcorn for $8.35 how much did he pay for each pound of popcorn
marta [7]

Answer:

$3.34 for each pound of popcorn

Step-by-step explanation:

All we must do, in this case, is divide 8.35 by 2.5.

This equals 3.34.

Therefore, each pound of popcorn cost $3.34.

Don't believe me? To check, just multiply 3.34 by 2.5.

Please let me know if you need help with anything else. :)

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what is the growth factor of y=34×4^x, the initial amount of y=15×3^x and the decay factor of y=17×0.2^x
11Alexandr11 [23.1K]
So the growth factor is the base of the exponential term, so the base of y = 34 * 4^x is 4.
the initial amount is the amount at x = 0
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3 years ago
Find the volume of the solid of revolution formed by rotating about the x--axis the region bounded by the given curves.
kherson [118]

Answer:

=\frac{364\pi}{3} cubic units

Step-by-step explanation:

We are to find the  volume of the solid of revolution formed by rotating about the x--axis the region bounded by the given curves.

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The picture is given as shaded region.

This is rotated about x axis

Limits for x are already given as 0 and 4

f(x) is a straight line

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Volume = \pi \int\limits^a_b {(2x+1)^2} \, dx \\= \pi \int\limits^4_0 {(4x^2+4x+1)} \, dx \\=\pi [\frac{4x^3}{3} +2x^2+x]^5_0\\\\=\pi[\frac{4*4^3}{3}+2*4^2+4-0]\\=\frac{364\pi}{3}

7 0
2 years ago
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