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shtirl [24]
3 years ago
15

Can you solve this problem? Don't forget to show your work :) thanks!

Mathematics
1 answer:
Rzqust [24]3 years ago
7 0
Well, start from 100% and work backwards.

It takes 5600 years to get to 50%
Another 5600 years to get to 25%
And a bit under another 5600 to get to 15% (another 5600 years would get it down to 12.5%)

Add the first two 550s to get 1120, and add about 5,000 and see which answer is closest.
In this case, D is closest at 15!w29

There are more exact ways of solving, but for a multiple choice this is faster and efficient nonetheless
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What is the volume of the composite figure? Use 3.14 for Pi. Round to the nearest hundredth.
emmainna [20.7K]

Answer:

376.52 is the volume of the composite figure.

Step-by-step explanation:

Let's break this into two shapes.

A rectangular prism and a hemisphere

Volume Formula for rectangular prism: l • h • w

Volume Formula for hemisphere: (2/3)πr^3

l • h • w

10 • 4 • 8

40 • 8

320

Rectangular Prism: 320

(2/3)πr^3

2/3(3)^3

2/3(3.14)(27)

2.09333333333(27)

56.52

Hemisphere: 56.52

320 + 56.52 = 376.52

8 0
3 years ago
Multiply. Express the product in simplest form. 2 over 10 times 20 equals n A. 40 B. 20 C. 4 D. 1 over 100
vredina [299]
The answer is choice A-40 :)
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Out of 515 seventh–grade students, 4/5 of them said they attended the school fundraiser. What percent of students did not attend
muminat
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FIRST ONE GETS BRAINLY 24POINTS
miv72 [106K]

Answer:

1) 22.5

2) -35

3) 118

Step-by-step explanation:

3 0
4 years ago
A teacher writes two equations as shown.
yaroslaw [1]
A) J = (3/8)*(5/15 -6/15) = (3/8)*(-1/15) = (1/8)*(-1/5) = -1/40
.. K = (3/4)*(4/6 -5/6) = (3/4)*(-1/6) = (1/4)*(-1/2) = -1/8

B) (-1/40) +(-1/8) = -1/40 -5/40 = -6/40 = -3/20

C) The opposite of -3/20 is 3/20

D) Real world: I'm answering Brainly.com questions and one asks the opposite of -3/20.
5 0
3 years ago
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