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Usimov [2.4K]
3 years ago
6

Find the volume of a cube that is 7 cm on each edge.

Mathematics
1 answer:
jek_recluse [69]3 years ago
4 0
WE KNOW THAT THE VOLUME OF THE CUBE IS '
V=a^3
our a=7
V=343 cm^3
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Shane purchased a television at a 20% discount. If the sale price is $375.00, what is the original price ?​
Sveta_85 [38]

the answer is going to be 450. all you have to do is add 375+20%

8 0
2 years ago
Ally is making a fruit punch using 48 ounces of grape juice and some seltzer water. She wants to make 10 equal servings that are
yaroslaw [1]
She should add 48 ounces of of seltzer water because it will allow at least 10 servings. 32 ounces would only be enough to make 8.88 servings
6 0
2 years ago
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What is the value of the sum of all the terms of the geometric series 300, 60, 12, …?
ruslelena [56]
<h3>Answer:   375</h3>

=========================================

Work Shown:

a = 300 = first term

r = 60/300 = 0.2 = common ratio

We multiply each term by 0.2, aka 1/5, to get the next term.

Since -1 < r < 1 is true, we can use the infinite geometric sum formula below

S = a/(1-r)

S = 300/(1-0.2)

S = 300/0.8

S = 375

----------

As a sort of "check", we can add up partial sums like so

  • 300+60 = 360
  • 300+60+12 = 360+12 = 372
  • 300+60+12+2.4 = 372+2.4 = 374.4
  • 300+60+12+2.4+0.48 = 374.4+0.48 = 374.88

and so on. The idea is that each time we add on a new term, we should be getting closer and closer to 375. I put "check" in quotation marks because it's probably not the rigorous of checks possible. But it may give a good idea of what's going on.

----------

Side note: If the common ratio r was either r < -1 or r > 1, then the terms we add on would get larger and larger. This would mean we don't approach a single finite value with the infinite sum.

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Find the total amount you will pay on a bill of $43.50 and tip rate of 12%.
Mars2501 [29]
About $48.72



Explanation:
8 0
3 years ago
A circular plate has a radius of 13 cm.
Korvikt [17]
A=pir^2
a=pi13^2
a=169pi
a=530.66 square cm
3 0
2 years ago
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