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vesna_86 [32]
4 years ago
6

Need help with 4, thanks!

Mathematics
1 answer:
Veseljchak [2.6K]4 years ago
7 0

Answer:

x=2

Step-by-step explanation:

In order to solve this problem, you need to find the scale factor. This is done through cross multiplying proportions. In this instance, you have to cross multiply x/4 by 3.5/7. When you multiply x and 7, you get 7x. When you multiply 3.5 and 4, you get 14. Simplify by isolating the variable, and you get 2.

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A cylinder has a volume of 432 cubic meters. What is the volume of a cylinder with dimensions one-third of the original?
alexandr1967 [171]
Cylindervolume=hpir^2

V=432
432=hpir^2=original

if each is divided by 3 then
h turns to (1/3)h
r turns to (1/3)r
input  and find the effect

(1/3)hpi[(1/3)r]^2
(1/3)hpi(1/9)r^2
move 1/9 to front
(1/27)hpir^2
compared to original volume (which was hpir^2)

so therefor we multiply the original volume by 1/27

432*1/27=16

the new volume is 16 cubic meters
5 0
3 years ago
Read 2 more answers
Mike has a stack of 10 cards numbered from 1 to 10. He randomly chooses a card and without replacing it, randomly chooses a seco
sergij07 [2.7K]

Answer:

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Step-by-step explanation:

2/10

4 0
3 years ago
2. A number decreased by eight is five<br>A CAB<br>BO-85<br>C-805<br>D-5​
Svetach [21]

Complete Question:

A number decreased by eight is five.

Group of answer choices.

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Step-by-step explanation:

Let the unknown number be C.

Translating the word problem into an algebraic equation, we have:

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C = 5 + 8

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Therefore, the unknown number is 13.

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